The Quarterly
CB 2011 10-K

Chubb Corp (CB) SEC Quarterly Report (10-Q) for Q3 2012

CB 2012 10-K
CB 2011 10-K CB 2012 10-K
Table of Contents

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D. C. 20549

FORM 10-Q

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2012

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission file number 1-8661

THE CHUBB CORPORATION

(Exact name of registrant as specified in its charter)

NEW JERSEY

13-2595722

(State or other jurisdiction of

incorporation or organization)

(I. R. S. Employer

Identification No.)

15 MOUNTAIN VIEW ROAD, WARREN, NEW JERSEY

07059

(Address of principal executive offices) (Zip Code)

Registrant's telephone number, including area code (908) 903-2000

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

YES   ☑ NO   ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

YES   ☑ NO   ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.(Check one):

Large accelerated filer   ☑ Accelerated filer   ¨ Non-accelerated filer   ¨ Smaller reporting company   ¨
(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

YES   ¨ NO   ☑

The number of shares of common stock outstanding as of September 30, 2012 was 261,944,304.

Table of Contents

THE CHUBB CORPORATION

INDEX

Page Number

Part I. Financial Information:

Item 1 - Financial Statements:

Consolidated Statements of Income for the Three Months and Nine Months Ended September  30, 2012 and 2011

1

Consolidated Statements of Comprehensive Income for the Three Months and Nine Months Ended September  30, 2012 and 2011

2

Consolidated Balance Sheets as of September 30, 2012 and December 31, 2011

3

Consolidated Statements of Cash Flows for the Nine Months Ended September 30, 2012 and 2011

4

Notes to Consolidated Financial Statements

5

Item  2 - Management's Discussion and Analysis of Financial Condition and Results of Operations

19

Item 4 - Controls and Procedures

51

Part II. Other Information:

Item 1 - Legal Proceedings

52

Item 1A - Risk Factors

52

Item 2 - Unregistered Sales of Equity Securities and Use of Proceeds

52

Item 6 -Exhibits

53

Signatures

53

EX-10.1

EX-31.1

EX-31.2

EX-32.1

EX-32.2

EX-101 INSTANCE DOCUMENT

EX-101 SCHEMA DOCUMENT

EX-101 CALCULATION LINKBASE DOCUMENT

EX-101 LABELS LINKBASE DOCUMENT

EX-101 PRESENTATION LINKBASE DOCUMENT

EX-101 DEFINITION LINKBASE DOCUMENT

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Part I. FINANCIAL INFORMATION

Item 1 - Financial Statements

THE CHUBB CORPORATION

CONSOLIDATED STATEMENTS OF INCOME

PERIODS ENDED SEPTEMBER 30

(in millions)

Third Quarter Nine Months
2012 2011 2012 2011
(As Adjusted) (As Adjusted)

Revenues

Premiums Earned

$ 2,977 $ 2,932 $ 8,911 $ 8,699

Investment Income

383 415 1,174 1,235

Other Revenues

2 2 7 6

Realized Investment Gains (Losses), Net

Total Other-Than-Temporary Impairment Losses on Investments

(5 (6 (40 (22

Other-Than-Temporary Impairment Losses on Investments Recognized in Other Comprehensive Income

(2 (1 (4 (1

Other Realized Investment Gains, Net

7 78 147 323

Total Realized Investment Gains, Net

- 71 103 300

Total Revenues

3,362 3,420 10,195 10,240

Losses and Expenses

Losses and Loss Expenses

1,597 2,054 5,164 5,666

Amortization of Deferred Policy Acquisition Costs

620 602 1,803 1,725

Other Insurance Operating Costs and Expenses

341 315 1,058 994

Investment Expenses

9 8 30 31

Other Expenses

3 2 9 7

Corporate Expenses

65 73 198 220

Total Losses and Expenses

2,635 3,054 8,262 8,643

Income Before Federal and Foreign Income Tax

727 366 1,933 1,597

Federal and Foreign Income Tax

194 68 490 371

Net Income

$ 533 $ 298 $ 1,443 $ 1,226

Net Income Per Share

Basic

$ 1.99 $ 1.04 $ 5.32 $ 4.19

Diluted

1.98 1.04 5.29 4.16

Dividends Declared Per Share

.41 .39 1.23 1.17

See Notes to Consolidated Financial Statements.

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THE CHUBB CORPORATION

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

PERIODS ENDED SEPTEMBER 30

(in millions)

Third Quarter Nine Months
2012 2011 2012 2011

Net Income

$   533 $   298 $   1,443 $   1,226

Other Comprehensive Income (Loss), Net of Tax

Change in Unrealized Appreciation of Investments

229 131 350 363

Change in Unrealized Other-Than-Temporary Impairment Losses on Investments

- 1 2 2

Foreign Currency Translation Gains (Losses)

20 (29 (17 56

Amortization of Net Actuarial Loss and Prior Service Cost Included in Net Postretirement Benefit Costs

12 12 40 34

261 115 375 455

Comprehensive Income

$ 794 $ 413 $ 1,818 $ 1,681

See Notes to Consolidated Financial Statements.

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THE CHUBB CORPORATION

CONSOLIDATED BALANCE SHEETS

(in millions)

Sept. 30,
2012
Dec. 31,
2011
(As Adjusted)

Assets

Invested Assets

Short Term Investments

$ 2,284 $ 1,893

Fixed Maturities (cost $35,384 and $34,762)

  38,217   37,184

Equity Securities (cost $1,234 and $1,264)

1,613 1,512

Other Invested Assets

1,949 2,180

TOTAL INVESTED ASSETS

44,063 42,769

Cash

53 58

Accrued Investment Income

445 440

Premiums Receivable

2,079 2,161

Reinsurance Recoverable on Unpaid Losses and Loss Expenses

1,690 1,739

Prepaid Reinsurance Premiums

338 320

Deferred Policy Acquisition Costs

1,218 1,210

Goodwill

467 467

Other Assets

1,288 1,281

TOTAL ASSETS

$ 51,641 $ 50,445

Liabilities

Unpaid Losses and Loss Expenses

$ 23,240 $ 23,068

Unearned Premiums

6,376 6,322

Long Term Debt

3,575 3,575

Dividend Payable to Shareholders

109 107

Deferred Income Tax

243 2

Accrued Expenses and Other Liabilities

2,124 2,070

TOTAL LIABILITIES

35,667 35,144

Contingent Liabilities (Note 6)

Shareholders' Equity

Common Stock - $1 Par Value; 371,980,460 Shares

372 372

Paid-In Surplus

162 190

Retained Earnings

20,015 18,903

Accumulated Other Comprehensive Income

1,570 1,195

Treasury Stock, at Cost - 110,036,156 and 99,519,509 Shares

(6,145 (5,359

TOTAL SHAREHOLDERS' EQUITY

15,974 15,301

TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY

$ 51,641 $ 50,445

See Notes to Consolidated Financial Statements.

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THE CHUBB CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

NINE MONTHS ENDED SEPTEMBER 30

(in millions)

2012 2011

Cash Flows from Operating Activities

Net Income

$     1,443 $     1,226

Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities

Increase in Unpaid Losses and Loss Expenses, Net

237 728

Increase in Unearned Premiums, Net

51 94

Decrease in Premiums Receivable

82 101

Change in Income Tax Payable or Recoverable

(1 (193

Amortization of Premiums and Discounts on Fixed Maturities

121 111

Depreciation

39 41

Realized Investment Gains, Net

(103 (300

Other, Net

(29 (118

Net Cash Provided by Operating Activities

1,840 1,690

Cash Flows from Investing Activities

Proceeds from Fixed Maturities

Sales

1,838 1,184

Maturities, Calls and Redemptions

2,985 2,450

Proceeds from Sales of Equity Securities

128 103

Purchases of Fixed Maturities

(5,505 (3,660

Purchases of Equity Securities

(88 (67

Investments in Other Invested Assets, Net

248 198

Increase in Short Term Investments, Net

(384 (378

Increase in Net Payable from Security Transactions Not Settled

136 91

Purchases of Property and Equipment, Net

(31 (30

Net Cash Used in Investing Activities

(673 (109

Cash Flows from Financing Activities

Increase (Decrease) in Funds Held Under Deposit Contracts

(8 8

Proceeds from Issuance of Common Stock Under Stock-Based Employee Compensation Plans

68 63

Repurchase of Shares

(903 (1,327

Dividends Paid to Shareholders

(329 (340

Net Cash Used in Financing Activities

(1,172 (1,596

Net Decrease in Cash

(5 (15

Cash at Beginning of Year

58 70

Cash at End of Period

$ 53 $ 55

See Notes to Consolidated Financial Statements.

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THE CHUBB CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1) General

The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) and include the accounts of The Chubb Corporation (Chubb) and its subsidiaries (collectively, the Corporation). Significant intercompany transactions have been eliminated in consolidation.

Effective January 1, 2012, the Corporation adopted new guidance issued by the Financial Accounting Standards Board (FASB) related to the accounting for costs associated with acquiring or renewing insurance contracts. The accounting change has been retrospectively applied; accordingly, prior period financial statements have been adjusted to reflect the change in accounting described in Note (2).

The amounts included in this report are unaudited but include those adjustments, consisting of normal recurring items, that management considers necessary for a fair presentation. These consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes in the Notes to Consolidated Financial Statements included in the Corporation's Annual Report on Form 10-K for the year ended December 31, 2011.

2) Adoption of New Accounting Pronouncements

Effective January 1, 2012, the Corporation adopted new guidance issued by the FASB related to the accounting for costs associated with acquiring or renewing insurance contracts. The guidance identifies those costs relating to the successful acquisition of new or renewal insurance contracts that should be capitalized. The Corporation elected retrospective application of this guidance under which deferred policy acquisition costs and related deferred income tax liabilities were reduced as of the beginning of the earliest period presented in the financial statements, offset by a cumulative effect adjustment that reduced retained earnings.

The adoption of this guidance decreased deferred policy acquisition costs by $420 million, decreased deferred income tax liabilities by $147 million and decreased shareholders' equity by $273 million as of December 31, 2011. The effect of the adoption of the new guidance on net income for the third quarter and nine months ended September 30, 2012 and September 30, 2011 was not material. Amortization of deferred policy acquisition costs and other insurance operating costs and expenses for the third quarter and nine months ended September 30, 2011 were retrospectively adjusted to conform to the change in accounting guidance.

The amounts of the retrospective reductions to previously reported deferred policy acquisition costs, related deferred income tax liabilities and shareholders' equity as of December 31, 2010 and 2009 were the same as the amounts of the reductions as of December 31, 2011. The effect of the adoption of the new guidance on previously reported net income for the years 2011 and 2010 was not material.

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3) Invested Assets

(a) The amortized cost and fair value of fixed maturities and equity securities were as follows:

September 30, 2012
Amortized
Cost
Gross
Unrealized
Appreciation
Gross
Unrealized
Depreciation
Fair
Value
(in millions)

Fixed maturities

Tax exempt

$  18,548 $  1,628 $  19 $  20,157

Taxable

U.S. government and government agency and authority obligations

985 72 1 1,056

Corporate bonds

7,153 613 2 7,764

Foreign government and government agency obligations

6,528 422 1 6,949

Residential mortgage-backed securities

491 38 2 527

Commercial mortgage-backed securities

1,679 86 1 1,764

16,836 1,231 7 18,060

Total fixed maturities

$ 35,384 $ 2,859 $ 26 $ 38,217

Equity securities

$ 1,234 $ 413 $ 34 $ 1,613

December 31, 2011
Amortized
Cost
Gross
Unrealized
Appreciation
Gross
Unrealized
Depreciation
Fair
Value
(in millions)

Fixed maturities

Tax exempt

$  18,786 $  1,462 $  37 $  20,211

Taxable

U.S. government and government agency and authority obligations

813 57 2 868

Corporate bonds

6,049 440 24 6,465

Foreign government and government agency obligations

6,409 416 2 6,823

Residential mortgage-backed securities

821 41 7 855

Commercial mortgage-backed securities

1,884 79 1 1,962

15,976 1,033 36 16,973

Total fixed maturities

$ 34,762 $ 2,495 $ 73 $ 37,184

Equity securities

$ 1,264 $ 319 $ 71 $ 1,512

At December 31, 2011, the gross unrealized depreciation of fixed maturities included $3 million of unrealized other-than-temporary impairment losses recognized in accumulated other comprehensive income.

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The fair value and amortized cost of fixed maturities at September 30, 2012 by contractual maturity were as follows:

Fair
Value
Amortized
Cost
(in millions)

Due in one year or less

$ 2,476 $ 2,447

Due after one year through five years

13,280 12,550

Due after five years through ten years

12,299 11,039

Due after ten years

7,871 7,178

35,926 33,214

Residential mortgage-backed securities

527 491

Commercial mortgage-backed securities

1,764 1,679

$  38,217 $  35,384

Actual maturities could differ from contractual maturities because borrowers may have the right to call or prepay obligations.

The Corporation's equity securities comprise a diversified portfolio of primarily U.S. publicly-traded common stocks.

The Corporation is involved in the normal course of business with variable interest entities (VIEs) primarily as a passive investor in residential mortgage-backed securities, commercial mortgage-backed securities and private equity limited partnerships issued by third party VIEs. The Corporation is not the primary beneficiary of these VIEs. The Corporation's maximum exposure to loss with respect to these investments is limited to the investment carrying values included in the Corporation's consolidated balance sheet and any unfunded partnership commitments.

(b) The components of unrealized appreciation or depreciation, including unrealized other-than-temporary impairment losses, of investments carried at fair value were as follows:

September 30, December 31,
2012 2011
(in millions)

Fixed maturities

Gross unrealized appreciation

$ 2,859 $ 2,495

Gross unrealized depreciation

26 73

2,833 2,422

Equity securities

Gross unrealized appreciation

413 319

Gross unrealized depreciation

34 71

379 248

3,212 2,670

Deferred income tax liability

1,124 934

$  2,088 $  1,736

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When the fair value of an investment is lower than its cost, an assessment is made to determine whether the decline is temporary or other than temporary. The assessment of other-than-temporary impairment of fixed maturities and equity securities is based on both quantitative criteria and qualitative information and also considers a number of other factors including, but not limited to, the length of time and the extent to which the fair value has been less than the cost, the financial condition and near term prospects of the issuer, whether the issuer is current on contractually obligated interest and principal payments, general market conditions and industry or sector specific factors.

In determining whether fixed maturities are other than temporarily impaired, the Corporation is required to recognize an other-than-temporary impairment loss when it concludes it has the intent to sell or it is more likely than not it will be required to sell an impaired fixed maturity before the security recovers to its amortized cost value or it is likely it will not recover the entire amortized cost value of an impaired security. If the Corporation has the intent to sell or it is more likely than not that the Corporation will be required to sell an impaired fixed maturity before the security recovers to its amortized cost value, the security is written down to fair value and the entire amount of the writedown is included in net income as a realized investment loss. For all other impaired fixed maturities, the impairment loss is separated into the amount representing the credit loss and the amount representing the loss related to all other factors. The amount of the impairment loss that represents the credit loss is included in net income as a realized investment loss and the amount of the impairment loss that relates to all other factors is included in other comprehensive income.

For fixed maturities, the split between the amount of other-than-temporary impairment losses that represents credit losses and the amount that relates to all other factors is principally based on assumptions regarding the amount and timing of projected cash flows. For fixed maturities other than mortgage-backed securities, cash flow estimates are based on assumptions regarding the probability of default and estimates regarding the timing and amount of recoveries associated with a default. For mortgage-backed securities, cash flow estimates are based on assumptions regarding future prepayment rates, default rates, loss severity and timing of recoveries. The Corporation has developed the estimates of projected cash flows using information based on historical market data, industry analyst reports and forecasts and other data relevant to the collectibility of a security.

In determining whether equity securities are other than temporarily impaired, the Corporation considers its intent and ability to hold a security for a period of time sufficient to allow for the recovery of cost. If the decline in the fair value of an equity security is deemed to be other than temporary, the security is written down to fair value and the amount of the writedown is included in net income as a realized investment loss.

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The following table summarizes, for all investment securities in an unrealized loss position at September 30, 2012, the aggregate fair value and gross unrealized depreciation, including unrealized other-than-temporary impairment losses, by investment category and length of time that individual securities have continuously been in an unrealized loss position.

Less Than 12 Months 12 Months or More Total
Fair
Value
Gross
Unrealized
Depreciation
Fair
Value
Gross
Unrealized
Depreciation
Fair
Value
Gross
Unrealized
Depreciation
(in millions)

Fixed maturities

Tax exempt

$ 70 $ 1 $ 98 $ 18 $ 168 $ 19

Taxable

U.S. government and government agency and authority obligations.

28 - 37 1 65 1

Corporate bonds

170 1 49 1 219 2

Foreign government and government agency obligations

244 1 12 - 256 1

Residential mortgage-backed securities

- - 21 2 21 2

Commercial mortgage-backed securities

34 1 1 - 35 1

476 3 120 4 596 7

Total fixed maturities

546 4 218 22 764 26

Equity securities

180 19 53 15 233 34

$   726 $   23 $   271 $   37 $   997 $   60

At September 30, 2012, approximately 180 individual fixed maturities and 30 individual equity securities were in an unrealized loss position. The Corporation does not have the intent to sell and it is not more likely than not that the Corporation will be required to sell these fixed maturities before the securities recover to their amortized cost value. In addition, the Corporation believes that none of the declines in the fair values of these fixed maturities relate to credit losses. The Corporation has the intent and ability to hold the equity securities in an unrealized loss position for a period of time sufficient to allow for the recovery of cost. The Corporation believes that none of the declines in the fair value of these fixed maturities and equity securities were other than temporary at September 30, 2012.

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The following table summarizes, for all investment securities in an unrealized loss position at December 31, 2011, the aggregate fair value and gross unrealized depreciation, including unrealized other-than-temporary impairment losses, by investment category and length of time that individual securities have continuously been in an unrealized loss position.

Less Than 12 Months 12 Months or More Total
Fair
Value
Gross
Unrealized
Depreciation
Fair
Value
Gross
Unrealized
Depreciation
Fair
Value
Gross
Unrealized
Depreciation
(in millions)

Fixed maturities

Tax exempt

$ 81 $ 1 $ 240 $ 36 $ 321 $ 37

Taxable

U.S. government and government agency and authority obligations

19 1 18 1 37 2

Corporate bonds

489 14 176 10 665 24

Foreign government and government agency obligations

499 1 21 1 520 2

Residential mortgage-backed securities

77 2 22 5 99 7

Commercial mortgage-backed securities

34 1 - - 34 1

1,118 19 237 17 1,355 36

Total fixed maturities

1,199 20 477 53 1,676 73

Equity securities

231 45 199 26 430 71

$   1,430 $   65 $   676 $ 79 $   2,106 $   144

The change in unrealized appreciation or depreciation of investments carried at fair value, including the change in unrealized other-than-temporary impairment losses, was as follows:

Periods Ended September 30
Third Quarter Nine Months
2012 2011 2012 2011
(in millions)

Change in unrealized appreciation of fixed maturities

$ 295 $ 478 $ 411 $ 731

Change in unrealized appreciation of equity securities

57 (276 131 (170

352 202 542 561

Deferred income tax

123 70 190 196

$   229 $   132 $   352 $   365

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(c) Realized investment gains and losses were as follows:

Periods Ended September 30
Third Quarter Nine Months
2012 2011 2012 2011
(in millions)

Fixed maturities

Gross realized gains

$     35 $     25 $     97 $     48

Gross realized losses

(8 (10 (18 (25

Other-than-temporary impairment losses

(2 (1 (4 (1

25 14 75 22

Equity securities

Gross realized gains

25 16 50 45

Gross realized losses

- - - (1

Other-than-temporary impairment losses

(5 (6 (40 (22

20 10 10 22

Other invested assets

(45 47 18 256

$ - $ 71 $ 103 $ 300

(d) As of September 30, 2012 and December 31, 2011, fixed maturities still held by the Corporation for which a portion of their other-than-temporary impairment losses were recognized in other comprehensive income had cumulative credit-related losses of $22 million and $20 million, respectively, recognized in net income.

4) Fair Values of Financial Instruments

Fair values of financial instruments are determined using valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. Fair values are generally measured using quoted prices in active markets for identical assets or liabilities or other inputs, such as quoted prices for similar assets or liabilities, that are observable either directly or indirectly. In those instances where observable inputs are not available, fair values are measured using unobservable inputs for the asset or liability. Unobservable inputs reflect the Corporation's own assumptions about the assumptions that market participants would use in pricing the asset or liability and are developed based on the best information available in the circumstances. Fair value estimates derived from unobservable inputs are affected by the assumptions used, including the discount rates and the estimated amounts and timing of future cash flows. The derived fair value estimates cannot be substantiated by comparison to independent markets and are not necessarily indicative of the amounts that would be realized in a current market exchange. Certain financial instruments, particularly insurance contracts, are excluded from fair value disclosure requirements.

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The methods and assumptions used to estimate the fair values of financial instruments are as follows:

(i) The carrying value of short term investments approximates fair value due to the short maturities of these investments.

(ii) Fair values for fixed maturities are determined by management, utilizing prices obtained from a third party, nationally recognized pricing service or, in the case of securities for which prices are not provided by a pricing service, from third party brokers. For fixed maturities that have quoted prices in active markets, market quotations are provided. For fixed maturities that do not trade on a daily basis, the pricing service and brokers provide fair value estimates using a variety of inputs including, but not limited to, benchmark yields, reported trades, broker/dealer quotes, issuer spreads, bids, offers, reference data, prepayment rates and measures of volatility. Management reviews on an ongoing basis the reasonableness of the methodologies used by the relevant pricing service and brokers. In addition, management, using the prices received for the securities from the pricing service and brokers, determines the aggregate portfolio price performance and reviews it against applicable indices. If management believes that significant discrepancies exist, it will discuss these with the relevant pricing service or broker to resolve the discrepancies.

(iii) Fair values of equity securities are based on quoted market prices.

(iv) Fair values of long term debt issued by Chubb are determined by management, utilizing prices obtained from a third party, nationally recognized pricing service.

The carrying values and fair values of financial instruments were as follows:

September 30, 2012 December 31, 2011
Carrying
Value
Fair
Value
Carrying
Value
Fair
Value
(in millions)

Assets

Invested assets

Short term investments

$ 2,284 $ 2,284 $ 1,893 $ 1,893

Fixed maturities

  38,217   38,217   37,184   37,184

Equity securities

1,613 1,613 1,512 1,512

Liabilities

Long term debt

3,575 4,427 3,575 4,085
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A pricing service provides fair value amounts for approximately 99% of the Corporation's fixed maturities. The prices obtained from a pricing service and brokers generally are non-binding, but are reflective of current market transactions in the applicable financial instruments.

At September 30, 2012 and December 31, 2011, the Corporation held an insignificant amount of financial instruments in its investment portfolio for which a lack of market liquidity impacted the determination of fair value.

The fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three broad levels as follows:

Level 1 - Unadjusted quoted prices in active markets for identical assets.

Level 2 - Other inputs that are observable for the asset, either directly or indirectly.

Level 3 - Inputs that are unobservable.

The fair value of financial instruments categorized based upon the lowest level of input that was significant to the fair value measurement was as follows:

September 30, 2012
Level 1 Level 2 Level 3 Total
(in millions)

Assets

Short term investments

$ 171 $ 2,113 $ - $ 2,284

Fixed maturities

Tax exempt

- 20,151 6 20,157

Taxable

U.S. government and government agency and authority obligations

- 1,056 - 1,056

Corporate bonds

- 7,616 148 7,764

Foreign government and government agency obligations

- 6,949 - 6,949

Residential mortgage-backed securities

- 517 10 527

Commercial mortgage-backed securities

- 1,764 - 1,764

- 17,902 158 18,060

Total fixed maturities

- 38,053 164 38,217

Equity securities

1,605 - 8 1,613

$   1,776 $   40,166 $   172 $   42,114

Liabilities

Long term debt

$ - $ 4,427 $ - $ 4,427

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December 31, 2011
Level 1 Level 2 Level 3 Total
(in millions)

Assets

Short term investments

$ 117 $ 1,776 $ - $ 1,893

Fixed maturities

Tax exempt

- 20,203 8 20,211

Taxable

U.S. government and government agency and authority obligations

- 868 - 868

Corporate bonds

- 6,313 152 6,465

Foreign government and government agency obligations

- 6,820 3 6,823

Residential mortgage-backed securities

- 845 10 855

Commercial mortgage-backed securities

- 1,962 - 1,962

- 16,808 165 16,973

Total fixed maturities

- 37,011 173 37,184

Equity securities

1,504 - 8 1,512

$     1,621 $   38,787 $         181 $   40,589

Liabilities

Long term debt

$ - $ 4,085 $ - $ 4,085

5) Segments Information

The principal business of the Corporation is the sale of property and casualty insurance. The profitability of the property and casualty insurance business depends on the results of both underwriting operations and investments, which are viewed as two distinct operations. The underwriting operations are managed and evaluated separately from the investment function.

The property and casualty insurance subsidiaries underwrite most lines of property and casualty insurance. Underwriting operations consist of four separate business units: personal insurance, commercial insurance, specialty insurance and reinsurance assumed. The personal segment targets the personal insurance market. The personal classes include automobile, homeowners and other personal coverages. The commercial segment includes those classes of business that are generally available in broad markets and are of a more commodity nature. Commercial classes include multiple peril, casualty, workers' compensation and property and marine. The specialty segment includes those classes of business that are available in more limited markets since they require specialized underwriting and claim settlement. Specialty classes include professional liability coverages and surety. The reinsurance assumed business is in runoff following the transfer of the ongoing business to a reinsurance company in 2005.

Corporate and other includes investment income earned on corporate invested assets, corporate expenses and the results of the Corporation's non-insurance subsidiaries.

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Revenues and income before income tax of each operating segment were as follows:

Periods Ended September 30
Third Quarter Nine Months
2012 2011 2012 2011
(in millions)

Revenues

Property and casualty insurance

Premiums earned

Personal insurance

$ 1,009 $ 987 $ 3,013 $ 2,924

Commercial insurance

1,299 1,249 3,890 3,692

Specialty insurance

669 693 2,005 2,077

Total insurance

2,977 2,929 8,908 8,693

Reinsurance assumed

- 3 3 6

2,977 2,932 8,911 8,699

Investment income

373 404 1,145 1,200

Total property and casualty insurance

3,350 3,336 10,056 9,899

Corporate and other

12 13 36 41

Realized investment gains, net

- 71 103 300

Total revenues

$     3,362 $     3,420 $     10,195 $     10,240

Income (loss) before income tax

Property and casualty insurance

Underwriting

Personal insurance

$ 155 $ (168 $ 374 $ (84

Commercial insurance

194 8 263 (90

Specialty insurance

63 89 194 368

Total insurance

412 (71 831 194

Reinsurance assumed

15 11 34 26

427 (60 865 220

Increase (decrease) in deferred policy acquisition costs

(9 13 15 70

Underwriting income (loss)

418 (47 880 290

Investment income

364 396 1,117 1,171

Other income

1 8 6 24

Total property and casualty insurance

783 357 2,003 1,485

Corporate and other loss

(56 (62 (173 (188

Realized investment gains, net

- 71 103 300

Total income before income tax

$ 727 $ 366 $ 1,933 $ 1,597

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6) Contingent Liabilities

Chubb and certain of its subsidiaries have been involved in the investigations by various Attorneys General and other regulatory authorities of several states, the U.S. Securities and Exchange Commission, the U.S. Attorney for the Southern District of New York and certain non-U.S. regulatory authorities with respect to certain business practices in the property and casualty insurance industry including (1) potential conflicts of interest and anti-competitive behavior arising from the payment of contingent commissions to brokers and agents and (2) loss mitigation and finite reinsurance arrangements. In connection with these investigations, Chubb and certain of its subsidiaries received subpoenas and other requests for information from various regulators. The Corporation has cooperated fully with these investigations. The Corporation has settled with several state Attorneys General and insurance departments all issues arising out of their investigations.

Individual actions and purported class actions arising out of the investigations into the payment of contingent commissions to brokers and agents have been filed in a number of federal and state courts. On August 1, 2005, Chubb and certain of its subsidiaries were named in a putative class action entitled In re Insurance Brokerage Antitrust Litigation in the U.S. District Court for the District of New Jersey (N.J. District Court). This action, brought against several brokers and insurers on behalf of a class of persons who purchased insurance through the broker defendants, asserts claims under the Sherman Act, state law and the Racketeer Influenced and Corrupt Organizations Act (RICO) arising from the alleged unlawful use of contingent commission agreements. On September 28, 2007, the N.J. District Court dismissed the second amended complaint filed by the plaintiffs in its entirety. In so doing, the N.J. District Court dismissed the plaintiffs' Sherman Act and RICO claims with prejudice for failure to state a claim, and it dismissed the plaintiffs' state law claims without prejudice because it declined to exercise supplemental jurisdiction over them. The plaintiffs appealed the dismissal of their second amended complaint to the U.S. Court of Appeals for the Third Circuit (Third Circuit). On August 13, 2010, the Third Circuit affirmed in part and vacated in part the N.J. District Court decision and remanded the case back to the N.J. District Court for further proceedings. As a result of the Third Circuit's decision, the plaintiffs' state law claims and certain of the plaintiffs' Sherman Act and RICO claims were reinstated against the Corporation. The Corporation and the other defendants filed motions to dismiss the reinstated claims on October 1, 2010. Subsequently, several of the other defendants entered into settlement agreements with the plaintiffs. In light of these settlements and their impact on the litigation, the N.J. District Court on June 17, 2011 dismissed without prejudice the motions to dismiss filed by the Corporation and the other non-settling defendants. On October 21, 2011, the Corporation and the other non-settling defendants refiled their motions to dismiss and the plaintiffs filed their papers in opposition. On March 30, 2012, the N.J. District Court formally approved the settlements entered into by the settling defendants. On April 30, 2012, the non-settling parties were ordered to engage in settlement discussions and, as a result, on May 31, 2012, the N.J. District Court administratively terminated the non-settling defendants' motions to dismiss. The non-settling defendants again requested leave of the N.J. District Court to refile their motions to dismiss, which was granted on September 25, 2012. The defendants are awaiting the scheduling of oral argument on their motions. Discovery in the case is on-going.

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Chubb and certain of its subsidiaries also have been named as defendants in other putative class actions relating or similar to the In re Insurance Brokerage Antitrust Litigation that have been filed in various state courts or in U.S. district courts between 2005 and 2007. These actions were subsequently removed and ultimately transferred to the N.J. District Court for consolidation with the In re Insurance Brokerage Antitrust Litigation. These actions were previously stayed but that stay has been lifted. Chubb settled one of these actions, which was dismissed on August 14, 2012. The parties currently are conducting discovery in the remaining actions.

In the various actions described above, the plaintiffs generally allege that the defendants unlawfully used contingent commission agreements and conspired to reduce competition in the insurance markets. The actions seek treble damages, injunctive and declaratory relief and attorneys' fees. The Corporation believes it has substantial defenses to all of the aforementioned legal proceedings and intends to defend the actions vigorously.

The Corporation cannot predict at this time the ultimate outcome of the aforementioned ongoing investigations and legal proceedings, including any potential amounts that the Corporation may be required to pay in connection with them. Nevertheless, management believes that the outcome will not have a material adverse effect on the Corporation's results of operations or financial condition.

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7) Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share:

Periods Ended September 30
Third Quarter Nine Months
2012 2011 2012 2011

(in millions,

except for per share amounts)

Basic earnings per share:

Net income

$ 533 $ 298 $ 1,443 $ 1,226

Weighted average shares outstanding

267.3 285.7 271.0 292.6

Basic earnings per share

$ 1.99 $ 1.04 $ 5.32 $ 4.19

Diluted earnings per share:

Net income

$ 533 $ 298 $ 1,443 $ 1,226

Weighted average shares outstanding

267.3 285.7 271.0 292.6

Additional shares from assumed issuance of shares under stock-based compensation awards

1.9 2.1 1.9 1.8

Weighted average shares and potential shares assumed outstanding for computing diluted earnings per share

  269.2   287.8   272.9   294.4

Diluted earnings per share

$ 1.98 $ 1.04 $ 5.29 $ 4.16

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Item 2 - Management's Discussion and Analysis of Financial Condition and Results of Operations

Management's Discussion and Analysis of Financial Condition and Results of Operations addresses the financial condition of the Corporation as of September 30, 2012 compared with December 31, 2011 and the results of operations for the nine months and three months ended September 30, 2012 and 2011. This discussion should be read in conjunction with the condensed consolidated financial statements and related notes contained in this report and the consolidated financial statements and related notes and management's discussion and analysis of financial condition and results of operations included in the Corporation's Annual Report on Form 10-K for the year ended December 31, 2011.

Cautionary Statement Regarding Forward-Looking Information

Certain statements in this document are "forward-looking statements" as that term is defined in the Private Securities Litigation Reform Act of 1995 (PSLRA). These forward-looking statements are made pursuant to the safe harbor provisions of the PSLRA and include statements regarding our loss reserve and reinsurance recoverable estimates; the cost of our property reinsurance program in 2012; market conditions in 2012, including premium volume, rate trends, the pricing environment and competition; 2012 full year property and casualty investment income; the repurchase of common stock under our share repurchase program; our financial position, capital adequacy and funding of liquidity needs; and the impact of a downgrade in our credit or financial strength ratings. Forward-looking statements frequently can be identified by words such as "believe," "expect," "anticipate," "intend," "plan," "will," "may," "should," "could," "would," "likely," "estimate," "predict," "potential," "continue," or other similar expressions. Forward-looking statements are made based upon management's current expectations and beliefs concerning trends and future developments and their potential effects on us. These statements are not guarantees of future performance. Actual results may differ materially from those suggested by forward-looking statements as a result of risks and uncertainties, which include, among others, those discussed or identified from time to time in our public filings with the Securities and Exchange Commission and those associated with:

global political, economic and market conditions, particularly in the jurisdictions in which we operate and/or invest, including:

- changes in credit ratings, interest rates, market credit spreads and the performance of the financial markets;

- currency fluctuations;

- the effects of inflation;

- changes in domestic and foreign laws, regulations and taxes;

- changes in competition and pricing environments;

- regional or general changes in asset valuations;

- the inability to reinsure certain risks economically; and

- changes in the litigation environment;

the effects of the outbreak or escalation of war or hostilities;

the occurrence of terrorist attacks, including any nuclear, biological, chemical or radiological events;

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premium pricing and profitability or growth estimates overall or by lines of business or geographic area, and related expectations with respect to the timing and terms of any required regulatory approvals;

adverse changes in loss cost trends;

our ability to retain existing business and attract new business at acceptable rates;

our expectations with respect to cash flow and investment income and with respect to other income;

the adequacy of our loss reserves, including:

- our expectations relating to reinsurance recoverables;

- the willingness of parties, including us, to settle disputes;

- developments in judicial decisions or regulatory or legislative actions relating to coverage and liability, in particular, for asbestos, toxic waste and other mass tort claims;

- development of new theories of liability;

- our estimates relating to ultimate asbestos liabilities; and

- the impact from the bankruptcy protection sought by various asbestos producers and other related businesses;

the availability and cost of reinsurance coverage;

the occurrence of significant weather-related or other natural or human-made disasters, particularly in locations where we have concentrations of risk or changes to our estimates (or the assessments of rating agencies and other third parties) of our potential exposure to such events;

the impact of economic factors on companies on whose behalf we have issued surety bonds, and in particular, on those companies that file for bankruptcy or otherwise experience deterioration in creditworthiness;

the effects of disclosures by, and investigations of, companies relating to possible accounting irregularities, practices in the financial services industry, investment losses or other corporate governance issues, including:

- the effects on the capital markets and the markets for directors and officers and errors and omissions insurance;

- claims and litigation arising out of actual or alleged accounting or other corporate malfeasance by other companies;

- claims and litigation arising out of practices in the financial services industry;

- claims and litigation relating to uncertainty in the credit and broader financial markets; and

- legislative or regulatory proposals or changes;

the effects of changes in market practices in the U.S. property and casualty insurance industry arising from any legal or regulatory proceedings, related settlements and industry reform, including changes that have been announced and changes that may occur in the future;

the impact of legislative, regulatory and similar developments on our business, including those relating to terrorism, catastrophes, the financial markets, solvency standards, capital requirements and accounting guidance;

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any downgrade in our claims-paying, financial strength or other credit ratings;

the ability of our subsidiaries to pay us dividends; and

our ability to implement management's strategic plans and initiatives.

Chubb assumes no obligation to update any forward-looking information set forth in this document, which speak as of the date hereof.

Critical Accounting Estimates and Judgments

The consolidated financial statements include amounts based on informed estimates and judgments of management for transactions that are not yet complete. Such estimates and judgments affect the reported amounts in the financial statements. Those estimates and judgments that were most critical to the preparation of the financial statements involved the determination of loss reserves and the recoverability of related reinsurance recoverables and the evaluation of whether a decline in value of any investment is temporary or other than temporary. These estimates and judgments, which are discussed in Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2011 as supplemented within the following analysis of our results of operations, require the use of assumptions about matters that are highly uncertain and therefore are subject to change as facts and circumstances develop. If different estimates and judgments had been applied, materially different amounts might have been reported in the financial statements.

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Overview

The following highlights do not address all of the matters covered in the other sections of Management's Discussion and Analysis of Financial Condition and Results of Operations or contain all of the information that may be important to Chubb's shareholders or the investing public. This overview should be read in conjunction with the other sections of Management's Discussion and Analysis of Financial Condition and Results of Operations.

Net income was $1.4 billion in the first nine months of 2012 and $533 million in the third quarter compared with $1.2 billion and $298 million, respectively, in the same periods of 2011. Net income was higher in the first nine months and third quarter of 2012 compared to the same periods of 2011 due to higher operating income in the 2012 periods that was offset in part by lower net realized investment gains. We define operating income as net income excluding realized investment gains and losses after tax.

Operating income was $1.4 billion in the first nine months of 2012 and $533 million in the third quarter compared with $1.0 billion and $252 million, respectively, in the same periods of 2011. The higher operating income in the first nine months and third quarter of 2012 was due to substantially higher underwriting income in our property and casualty business. Property and casualty investment income decreased in both periods. Management uses operating income, a non-GAAP financial measure, among other measures, to evaluate its performance because the realization of investment gains and losses in any period could be discretionary as to timing and can fluctuate significantly, which could distort the analysis of operating trends.

Underwriting results were highly profitable in the first nine months and third quarter of 2012 compared with modestly profitable results in the first nine months of 2011 and modestly unprofitable results in the third quarter of 2011. Our combined loss and expense ratio was 90.1% in the first nine months of 2012 and 86.3% in the third quarter compared with 97.1% and 102.6% in the respective periods of 2011. The more profitable results in the first nine months of 2012 were due to a lower impact of catastrophes, offset in part by a lower amount of favorable prior year loss development. The improved underwriting results in the third quarter of 2012 compared with the same period in 2011 were due to a significantly lower impact from catastrophes and, to a lesser extent, a lower current accident year loss ratio excluding catastrophes. The impact of catastrophes accounted for 3.0 percentage points of the combined ratio in the first nine months of 2012 and 0.6 of a percentage point in the third quarter, compared with 11.7 and 14.4 percentage points, respectively, in the same periods of 2011.

During the first nine months and third quarter of 2012, we estimate that we experienced overall favorable development of about $410 million and $145 million, respectively, on loss reserves established as of the previous year end. During the first nine months and third quarter of 2011, we estimate that we experienced overall favorable development of about $580 million and $155 million, respectively. The overall favorable development in the 2012 periods was due primarily to favorable loss experience in the commercial liability classes and, to a lesser extent, in the professional liability and personal insurance classes. The overall favorable development in the 2011 periods was due primarily to favorable loss experience in the commercial liability and professional liability classes and, to a lesser extent, in the personal insurance classes.

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Total net premiums written increased by 2% in the first nine months of 2012 and 1% in the third quarter compared with the same periods in 2011, driven by growth in the United States. Net premiums written in the United States increased by 4% in both the first nine months and third quarter of 2012. The growth in net premiums written in the United States reflected continued price increases in the commercial market as well as in personal lines. Net premiums written outside the United States decreased by 3% in the first nine months of 2012 and 6% in the third quarter in U.S. dollars. When measured in local currencies, such premiums increased slightly in the first nine months of 2012 and were flat in the third quarter of 2012.

Property and casualty investment income after tax decreased by 4% in the first nine months of 2012 and 7% in the third quarter compared with the same periods in 2011, in what continued to be a low yield investment environment. Management uses property and casualty investment income after tax, a non-GAAP financial measure, to evaluate its investment results because it reflects the impact of any change in the proportion of tax exempt investment income to total investment income and is therefore more meaningful for analysis purposes than investment income before income tax.

Net realized investment gains before tax were $103 million ($67 million after tax) in the first nine months of 2012 compared with $300 million ($195 million after tax) in the comparable period of 2011. Net realized investment losses were negligible in the third quarter of 2012 compared with net realized investment gains of $71 million ($46 million after tax) in the same period of 2011. The net realized gains in the first nine months of 2012 were primarily related to sales of fixed maturity and equity securities. The net realized gains in the first nine months and the third quarter of 2011 were primarily related to investments in limited partnerships, which generally are reported on a quarter lag.

A summary of our consolidated net income is as follows:

Periods Ended September 30
Nine Months Third Quarter
2012 2011 2012 2011
(in millions)

Property and casualty insurance

$  2,003 $  1,485 $  783 $  357

Corporate and other

(173 (188 (56 (62

Consolidated operating income before income tax

1,830 1,297 727 295

Federal and foreign income tax

454 266 194 43

Consolidated operating income

1,376 1,031 533 252

Realized investment gains after income tax

67 195 - 46

Consolidated net income

$ 1,443 $ 1,226 $ 533 $ 298

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Property and Casualty Insurance

A summary of the results of operations of our property and casualty insurance business is as follows:

Periods Ended September 30
Nine Months Third Quarter
2012 2011 2012 2011
(in millions)

Underwriting

Net premiums written

$  8,962 $  8,793 $  2,913 $  2,879

Decrease (increase) in unearned premiums

(51 (94 64 53

Premiums earned

8,911 8,699 2,977 2,932

Losses and loss expenses

5,164 5,666 1,597 2,054

Operating costs and expenses

2,859 2,790 946 931

Decrease (increase) in deferred policy acquisition costs

(15 (70 9 (13

Dividends to policyholders

23 23 7 7

Underwriting income (loss)

880 290 418 (47

Investments

Investment income before expenses

1,145 1,200 373 404

Investment expenses

28 29 9 8

Investment income

1,117 1,171 364 396

Other income

6 24 1 8

Property and casualty income before tax

$ 2,003 $ 1,485 $ 783 $ 357

Property and casualty investment income after tax

$ 908 $ 949 $ 297 $ 321

Property and casualty income before tax was substantially higher in the first nine months and third quarter of 2012 compared with the same periods in 2011. The higher income in the 2012 periods was due to an increase in underwriting income. The increase in underwriting income in the first nine months of 2012 compared with the same period in 2011 was attributable to a lower impact of catastrophes, offset in part by a lower amount of favorable prior year loss development. The increase in underwriting income in the third quarter of 2012 compared with the same period of 2011 was due to a significantly lower impact of catastrophes and, to a lesser extent, to a lower current accident year loss ratio excluding catastrophes. Investment income decreased in the first nine months and third quarter of 2012 compared with the same periods of 2011, primarily due to a decline in the average yield of our investment portfolio.

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The profitability of our property and casualty insurance business depends on the results of both our underwriting and investment operations. We view these as two distinct operations since the underwriting functions are managed separately from the investment function. Accordingly, in assessing our performance, we evaluate underwriting results separately from investment results.

Underwriting Results

We evaluate the underwriting results of our property and casualty insurance business in the aggregate and also for each of our separate business units.

Net Premiums Written

Net premiums written were $9.0 billion in the first nine months of 2012 compared with $8.8 billion in the same period of 2011. Net premiums were $2.9 billion in the third quarter of both 2012 and 2011. Net premiums written by business unit were as follows:

Nine Months Ended
Sept. 30
% Incr.
(Decr.)
Quarter Ended
Sept. 30
% Incr.
(Decr.)
2012 2011 2012 2011
(in millions) (in millions)

Personal insurance

$  3,111 $  2,986 4 $  1,062 $  1,029 3

Commercial insurance

3,969 3,819 4 1,211 1,183 2

Specialty insurance

1,880 1,984 (5 640 665 (4

Total insurance

8,960 8,789 2 2,913 2,877 1

Reinsurance assumed

2 4 * - 2 *

Total

$ 8,962 $ 8,793 2 $ 2,913 $ 2,879 1

* The change in net premiums written is not presented since the business is in runoff.

Net premiums written increased by 2% in the first nine months of 2012 and 1% in the third quarter compared with the same periods in 2011. Net premiums written in the United States, which represented 74% of our total net premiums written in the first nine months of 2012, increased by 4% in the first nine months and third quarter of 2012. Net premiums written outside the United States, expressed in U.S. dollars, decreased by 3% in the first nine months of 2012 and 6% in the third quarter. The decrease in net premiums written outside the United States in the first nine months and third quarter of 2012 was due to the negative impact of foreign currency translation, reflecting the impact of the stronger U.S. dollar relative to several currencies in which we wrote business in the first nine months and third quarter of 2012 compared to the same periods in 2011. When measured in local currencies, net premiums written outside the United States grew slightly in the first nine months of 2012 and were flat in the third quarter compared with the same periods of 2011.

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We classify business as written in the United States or outside the United States based on the location of the risk associated with the underlying policies. The method of determining location of risk varies by class of business. Location of risk for property lines is typically based on the physical location of the covered property, while location of risk for liability lines may be based on the main location of the insured, or in the case of the workers' compensation line, the primary work location of the covered employee.

Net premiums written in the United States grew in the first nine months and third quarter of 2012 in our personal and commercial insurance segments. Net premiums written in the United States for our specialty insurance segment, including its predominant professional liability insurance business component, decreased in the first nine months and third quarter of 2012 when compared with the same periods of 2011. Growth in our personal insurance business was attributable to new business, strong retention of existing business as well as higher rates and insured exposures upon renewal. While there was improvement during the first nine months of 2012 in the commercial and professional liability insurance pricing environment, continuing a trend that began during 2011, the positive trend had a more significant impact on growth in our commercial insurance business.

Overall, average renewal rates in the first nine months of 2012 in the United States were up in both our commercial and professional liability businesses in comparison to expiring rates. The amounts of coverage purchased or the insured exposures, both of which are bases upon which we calculate the premiums we charge, were generally near flat, although exposure amounts were up in select lines of business. We continued to retain a high percentage of our existing commercial and professional liability business, but renewal retention levels in the first nine months and third quarter of 2012 were lower than those in the same periods of 2011, as we continued to seek renewal rate increases in most of the classes within these segments and take underwriting actions to improve portions of the business, particularly some of the professional liability classes. The overall level of new business in the United States in our commercial and professional liability businesses was also down in the first nine months of 2012, reflecting both the competitive market as well as our underwriting discipline. In the third quarter of 2012, the overall level of new business was up slightly in the United States in our commercial business, but slightly down for our professional liability business.

Net premiums written outside the United States decreased in the first nine months and third quarter of 2012. Personal insurance premiums outside the United States were up slightly in the first nine months of 2012 and down in the third quarter, reflecting the adverse impact of foreign currency translation. Commercial insurance and professional liability premiums outside the United States were both down in the first nine months and third quarter of 2012. Excluding the impact of foreign currency translation, net premiums written outside the United States increased slightly in the first nine months of 2012 and were flat in the third quarter compared with the same periods in 2011. Average renewal rates in our commercial and professional liability business written outside the United States were up slightly in the first nine months and third quarter of 2012. Retention levels for our commercial and professional liability business written outside the United States were slightly lower in the first nine months of 2012 and about flat in the third quarter compared to the same periods in 2011. Levels of new business outside the United States were generally lower for both our commercial and professional liability business in the 2012 periods than those in the same periods of 2011.

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We expect our net written premiums for the full year 2012 will increase at a rate similar to the rate in the first nine months of the year, including a slight negative impact from foreign currency translation, assuming average foreign currency to U.S dollar exchange rates for the remainder of the year remain similar to September 30, 2012 levels. We expect that the positive pricing environment in most classes, particularly in the United States, will continue through the remainder of 2012, in a market that will remain competitive.

Reinsurance Ceded

Our premiums written are net of amounts ceded to reinsurers who assume a portion of the risk under the insurance policies we write that are subject to reinsurance.

The most significant component of our ceded reinsurance program is property reinsurance. We purchase two main types of property reinsurance: catastrophe and property per risk.

For property risks in the United States and Canada, we purchase traditional catastrophe reinsurance, including our primary treaty which we refer to as our North American catastrophe treaty, as well as supplemental catastrophe reinsurance that provides additional coverage for our exposures in the northeastern United States. For certain exposures in the United States, we have also arranged for the purchase of multi–year, collateralized reinsurance funded through the issuance of collateralized risk-linked securities, known as catastrophe bonds. For events outside the United States, we also purchase traditional catastrophe reinsurance.

We renewed our primary traditional property catastrophe treaties and our commercial property per risk treaty in April 2012. While the overall changes in these coverages were modest, we increased our participation in the lower layers of coverage and purchased additional coverage in the higher layers. In March 2012, we also arranged for the purchase of reinsurance through the issuance of a catastrophe bond. This replaced a catastrophe bond arrangement that expired in March 2012 and extended the jurisdictions and perils subject to coverage. The supplemental catastrophe reinsurance that provides coverage for exposures in the northeastern United States was renewed in June 2012 on terms similar to the expiring coverage.

The North American catastrophe treaty has an initial retention of $500 million and provides coverage for exposures in the United States and Canada of approximately 59% of losses (net of recoveries from other available reinsurance) between $500 million and $1.65 billion. For certain catastrophic events in the northeastern part of the United States or along the southern U.S. coastline, the combination of the North American catastrophe treaty, supplemental catastrophe reinsurance and/or the catastrophe bond arrangements provide additional coverages as discussed below.

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The catastrophe bond arrangements provide reinsurance coverage for specific types of losses in specific geographic locations. They are generally designed to supplement coverage provided under the North American catastrophe treaty. We currently have two catastrophe bond arrangements in effect. We have a $475 million reinsurance arrangement, a portion of which expires in March 2014 and the remainder in March 2015, that provides coverage for homeowners and commercial exposure to certain hurricane, earthquake, severe thunderstorm and winter storm loss events in twelve states in the northeastern United States and the District of Columbia. We also have a $150 million reinsurance arrangement that expires in March 2016 that provides coverage for homeowners-related hurricane and severe thunderstorm losses in eight states along the southern U.S. coastline.

For the indicated catastrophic events in the northeastern United States, the combination of the North American catastrophe treaty, the supplemental catastrophe reinsurance and the $475 million catastrophe bond arrangement provides additional coverage of approximately 65% of losses (net of recoveries from other available reinsurance) between $1.65 billion and $3.65 billion.

For hurricane and severe thunderstorm events along the southern U.S. coastline, the $150 million catastrophe bond arrangement provides additional coverage of approximately 50% of homeowners-related hurricane and severe thunderstorm losses between $850 million and $1.15 billion.

For hurricane events in Florida, in addition to the coverage provided by the North American catastrophe treaty and the $150 million catastrophe bond arrangement discussed above, we have reinsurance from the Florida Hurricane Catastrophe Fund (FHCF), which is a state-mandated fund designed to reimburse insurers for a portion of their residential catastrophic hurricane losses. Our participation in this mandatory program limits our initial retention in Florida for homeowners-related losses to approximately $165 million and provides coverage of 90% of covered losses between approximately $165 million and $595 million.

Our primary property catastrophe treaty for events outside the United States, including Canada, provides coverage of approximately 75% of losses (net of recoveries from other available reinsurance) between $100 million and $350 million. For catastrophic events in Australia and Canada, additional reinsurance provides coverage of 80% of losses (net of recoveries from other available reinsurance) between $350 million and $475 million.

In addition to catastrophe treaties, we also have a commercial property per risk treaty. This treaty provides coverage per risk of approximately $600 million to $800 million (depending upon the currency in which the insurance policy was issued) in excess of our initial retention. Our initial retention is generally between $25 million and $35 million.

In addition to our major property catastrophe and property per risk treaties, we purchase several smaller property treaties that only cover specific classes of business or locations having potential concentrations of risk.

Recoveries under our property reinsurance treaties are subject to certain coinsurance requirements that affect the interaction of some elements of our reinsurance program.

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Our property reinsurance treaties generally contain terrorism exclusions for acts perpetrated by foreign terrorists, and for nuclear, biological, chemical and radiological loss causes whether such acts are perpetrated by foreign or domestic terrorists.

Overall, rates related to the renewal of our property reinsurance program in 2012 were higher than those in 2011 due in large part to the significant worldwide catastrophe losses incurred by the industry in 2011. However, based on the changes in coverage we made upon renewal of the major components of our program, we expect that the overall cost of our property reinsurance program will be modestly lower in 2012 than in 2011.

Profitability

The combined loss and expense ratio (or combined ratio), expressed as a percentage, is the key measure of underwriting profitability traditionally used in the property and casualty insurance business. Management evaluates the performance of our underwriting operations and of each of our business units using, among other measures, the combined loss and expense ratio calculated in accordance with statutory accounting principles. It is the sum of the ratio of losses and loss expenses to premiums earned (loss ratio) plus the ratio of statutory underwriting expenses to premiums written (expense ratio) after reducing both premium amounts by dividends to policyholders. When the combined ratio is under 100%, underwriting results are generally considered profitable; when the combined ratio is over 100%, underwriting results are generally considered unprofitable.

Statutory accounting principles applicable to property and casualty insurance companies differ in certain respects from generally accepted accounting principles (GAAP). Under statutory accounting principles, policy acquisition and other underwriting expenses are recognized immediately, not at the time premiums are earned. Management uses underwriting results determined in accordance with GAAP, among other measures, to assess the overall performance of our underwriting operations. To convert statutory underwriting results to a GAAP basis, certain policy acquisition expenses are deferred and amortized over the period in which the related premiums are earned. Underwriting income determined in accordance with GAAP is defined as premiums earned less losses and loss expenses incurred and GAAP underwriting expenses incurred.

An accident year is the calendar year in which a loss is incurred or, in the case of claims-made policies, the calendar year in which a loss is reported. The total losses and loss expenses incurred for a particular calendar year include current accident year losses and loss expenses as well as any increases or decreases to our estimates of losses and loss expenses that occurred in all prior accident years, which we refer to as prior year loss development.

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Underwriting results were highly profitable in the first nine months and third quarter of 2012. Underwriting results were modestly profitable in the first nine months of 2011 and modestly unprofitable in the third quarter of 2011. The combined loss and expense ratio for our overall property and casualty business was as follows:

Periods Ended September 30
Nine Months Third Quarter
2012 2011 2012 2011

Loss ratio

58.1 65.3 53.8 70.2

Expense ratio

32.0 31.8 32.5 32.4

Combined ratio

90.1 97.1 86.3 102.6

The loss ratio was lower in the first nine months of 2012 compared with the same period in 2011 due to a lower impact of catastrophes offset in part by a lower amount of favorable prior year loss development. The current accident year loss ratio excluding catastrophes was slightly lower in the first nine months of 2012 compared with the same period in 2011. The loss ratio was lower in the third quarter of 2012 compared with the same period in 2011 due to a significantly lower impact of catastrophes and, to a lesser extent, a lower current accident year loss ratio excluding catastrophes. In both 2012 periods, a slightly higher current accident year loss ratio in specialty insurance was more than offset by a lower current accident year loss ratio in commercial insurance and personal insurance compared with the 2011 periods. The overall loss ratio excluding catastrophes in the first nine months and third quarter of each year reflected favorable loss experience that we believe resulted from our disciplined underwriting in recent years as well as relatively moderate loss trends and the positive impact on earned premiums of recent rate increases in several classes of business.

The impact of catastrophes in the first nine months of 2012 was $264 million, which represented 3.0 percentage points of the combined ratio. This compares with an impact of catastrophes in the first nine months of 2011 of $1.0 billion, which represented 11.7 percentage points of the combined ratio. The impact of catastrophes in the third quarter of 2012 was $17 million, which represented 0.6 of a percentage point of the combined ratio. This compares with an impact of catastrophes in the third quarter of 2011 of $420 million, which represented 14.4 percentage points of the combined ratio. A significant portion of the catastrophe losses in the first nine months of 2012 related to several severe hail and wind storms in the United States, primarily in the second quarter. A significant portion of the catastrophe losses in the first nine months of 2011 related to flooding in Australia and earthquakes in New Zealand and Japan in the first quarter as well as tornadoes and other storms in the United States, primarily in the second and third quarters, including losses of $335 million in the third quarter related to Hurricane Irene.

The expense ratio was slightly higher in the first nine months and third quarter of 2012 compared with the same periods of 2011.

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Review of Underwriting Results by Business Unit

Personal Insurance

Net premiums written from personal insurance, which represented 35% of our premiums written in the first nine months of 2012, increased by 4% in the first nine months of 2012 and 3% in the third quarter compared with the same periods in 2011. Net premiums written for the classes of business within the personal insurance segment were as follows:

Nine Months Ended
Sept. 30
Quarter Ended
Sept. 30
% Incr.
(Decr.)
2012 2011 % Incr. 2012 2011
(in millions) (in millions)

Automobile

$ 519 $ 517 - $ 170 $ 174 (2 )% 

Homeowners

1,940 1,872 4 679 658 3

Other

652 597 9 213 197 8

Total personal

$  3,111 $  2,986 4 $  1,062 $  1,029 3

Growth in net premiums written in our personal insurance business in the first nine months and third quarter of 2012 occurred primarily inside the United States. Growth in our personal insurance business was attributable to new business, strong retention of existing business as well as higher rates and insured exposures upon renewal. Personal automobile premiums were flat in the first nine months of 2012 and decreased modestly in the third quarter compared with the same periods in 2011 due to the negative impact of foreign currency translation. In both periods, personal automobile premiums grew modestly in the United States in what remained a highly competitive marketplace. Premiums outside the United States, which represent about 40% of this business annually, decreased in both periods. The decrease in premiums for personal automobile business written outside the United States in the first nine months and third quarter of 2012 was due to the negative impact of foreign currency translation. Premiums in our homeowners business increased in the first nine months and third quarter of 2012 compared with the same periods in 2011. Premiums in our homeowners business grew in the United States in both the first nine months and third quarter of 2012, reflecting increases in coverage on existing policies and higher renewal rates. Homeowners premiums outside the United States decreased slightly in the first nine months of 2012 and were flat in the third quarter compared to the same periods in 2011, due to the negative impact of foreign currency translation. Premiums from our other personal business, which includes accident and health, excess liability and yacht coverages, increased in the first nine months and third quarter of 2012 compared with the same periods in 2011. Premiums grew in our other personal business in the first nine months of 2012 both inside and outside the United States. In the third quarter of 2012, premiums for this business grew inside the United States, but decreased slightly outside the United States due to the negative impact of foreign currency translation. Significant growth occurred in our accident and health business both inside and outside the United States and in our excess liability business in the United States. In recent years, an increasing portion of our accident and health business has been written outside the United States.

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Our personal insurance business produced highly profitable underwriting results in the first nine months of 2012 compared with modestly unprofitable results in the same period of 2011. Underwriting results for our personal insurance business were highly profitable in the third quarter of 2012 compared with highly unprofitable results in the same period of 2011. The combined loss and expense ratios for the classes of business within the personal insurance segment were as follows:

Periods Ended September 30
Nine Months Third Quarter
2012 2011 2012 2011

Automobile

92.2 94.8 92.0 99.3

Homeowners

82.1 106.2 76.2 126.1

Other

95.1 96.1 95.5 97.6

Total personal

86.5 102.2 82.8 115.6

The more profitable results in the first nine months and third quarter of 2012 compared with the same periods in 2011 were primarily attributable to the lower impact of catastrophes. The impact of catastrophes represented 4.8 percentage points of the combined ratio of our personal insurance business in the first nine months of 2012 and 1.5 percentage points in the third quarter compared with 17.0 and 28.5 percentage points, respectively, in the same periods of 2011. Personal insurance results in the first nine months and third quarter of 2012 also benefited from a lower current accident year loss ratio excluding catastrophes, partly due to lower non-catastrophe weather-related losses. Results in the third quarter of 2012 also benefited from a higher amount of favorable prior year loss development compared to the same period of 2011.

Our personal automobile business produced profitable results in the first nine months of 2012 and 2011, but more so in 2012. Results were also profitable in the third quarter of 2012 compared with near breakeven results in the same period of 2011, which included higher catastrophe losses. Results in all periods benefited from moderate claim frequency and favorable prior year loss development.

Homeowners results were highly profitable in the first nine months of 2012 compared with unprofitable results in the same period of 2011. Homeowners results were also highly profitable in the third quarter of 2012 compared with highly unprofitable results in the same period of 2011. The improved results in the 2012 periods were primarily due to a lower impact of catastrophes and a lower current accident year loss ratio excluding catastrophes, due in part to lower non-catastrophe weather-related losses. Catastrophe losses represented 7.5 and 2.4 percentage points of the combined ratio for this class in the first nine months and third quarter of 2012, respectively, compared with 26.6 and 44.7 percentage points, respectively, in the same periods in 2011.

Other personal results were profitable in the first nine months and third quarter of 2012 and 2011. Our accident and health business produced near breakeven results in the first nine months and third quarter of 2012 compared with modestly unprofitable results in the same periods of 2011. Our personal excess liability business produced profitable results in the first nine months and third quarter of both years, but modestly less so in the first nine months of 2012, reflecting a lower amount of favorable prior year loss development. Our yacht business produced highly profitable results in the first nine months of both years. Yacht results were also highly profitable in the third quarter of 2012 compared with unprofitable results in the same period of 2011.

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Commercial Insurance

Net premiums written from commercial insurance, which represented 44% of our premiums written in the first nine months of 2012, increased by 4% in the first nine months of 2012 and 2% in the third quarter compared with the same periods a year ago. Net premiums written for the classes of business within the commercial insurance segment were as follows:

Nine Months Ended
Sept. 30
% Incr.
(Decr.)
Quarter Ended
Sept. 30
% Incr.
(Decr.)
2012 2011 2012 2011
(in millions) (in millions)

Multiple peril

$ 840 $ 852 (1 )%  $ 287 $ 290 (1 )% 

Casualty

1,248 1,247 - 378 392 (4

Workers' compensation

789 662 19 242 199 22

Property and marine

1,092 1,058 3 304 302 1

Total commercial

$  3,969 $  3,819 4 $  1,211 $  1,183 2

Growth in net premiums written in our commercial insurance business in the first nine months and third quarter of 2012 was driven by an increase in business written in the United States. Net premiums written for commercial business outside the United States decreased in the first nine months and third quarter of 2012 compared to the same periods of 2011 due in part to the effect of foreign currency translation. Overall, premium growth for our commercial insurance business reflected improved pricing as well as higher audit and endorsement premiums, in a market that continued to be highly competitive and offered limited attractive new business opportunities. The improvement in the overall rate environment, which began in 2011, continued in the first nine months of 2012, particularly in the United States. Improvement in the rate environment outside the United States has generally been slower and continues to lag the United States. Average renewal rates in the United States increased in the first nine months and third quarter of 2012 in all major classes of our commercial business. Average renewal rates outside the United States increased slightly in the first nine months and third quarter of 2012. Retention levels of our existing policyholders remained strong, but were down from those in the first nine months of 2011, both inside and outside the United States. The decline in retention was due to both our effort to increase rates in several classes of business and our non-renewal of some property business in catastrophe exposed areas. In the first nine months of 2012, the average renewal exposure change was close to flat, both inside and outside the United States. The amount of new business was down in the first nine months of 2012 compared with the same period in 2011, both inside and outside the United States, as we continued to maintain our underwriting discipline in the competitive market. In the third quarter of 2012, the level of new business was up slightly in the United States but was lower outside the United States. Despite the competitive conditions in the market, we expect that a positive rate environment will continue for the remainder of this year.

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Our commercial insurance business produced profitable underwriting results in the first nine months of 2012 and highly profitable results in the third quarter compared with slightly unprofitable results in the same periods of 2011. The combined loss and expense ratios for the classes of business within the commercial insurance segment were as follows:

Periods Ended September 30
Nine Months Third Quarter
2012 2011 2012 2011

Multiple peril

90.4 108.0 77.2 95.6

Casualty

91.6 86.7 89.2 92.5

Workers' compensation

95.2 92.5 94.9 94.4

Property and marine

94.3 119.0 87.9 119.8

Total commercial

92.6 101.4 87.2 101.1

The more profitable results in our commercial insurance business in the first nine months and third quarter of 2012 compared with the same periods in 2011 were mainly due to the lower impact of catastrophes and, to a lesser extent, improved current accident year results excluding catastrophes, offset in part by a lower amount of favorable prior year loss development. The impact of catastrophes represented 3.1 percentage points of the combined ratio for our commercial insurance business in the first nine months of 2012 and 0.2 of a percentage point in the third quarter compared with 14.2 and 11.2 percentage points, respectively, in the comparable periods in 2011. Results in all periods benefited from our disciplined risk selection and appropriate policy terms and conditions in recent years.

Multiple peril results were highly profitable in the first nine months of 2012 compared with unprofitable results in the same period of 2011. Results were also highly profitable in the third quarter of 2012 compared with profitable results in the same period of 2011. The improved results in the 2012 periods were due to a significant improvement in the property component of this business, primarily due to the lower impact of catastrophes and improved current accident year results excluding catastrophes in the 2012 periods, particularly in the third quarter. The impact of catastrophes in the multiple peril class was 4.9 percentage points of the combined ratio in the first nine months of 2012 compared with 21.6 percentage points in the same period of 2011. In the third quarter of 2012, catastrophes had a favorable impact of 3.5 percentage points on the combined ratio compared to an unfavorable impact of 10.3 percentage points in the same period of 2011. The liability component of this business produced profitable results in the first nine months and third quarter of both years, but more so in the 2011 periods. The less profitable results in the 2012 periods were due primarily to a higher current accident year loss ratio.

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Results for our casualty business were profitable in the first nine months of 2012 and highly profitable in the same period of 2011. Results were profitable in the third quarter of both years. Results in the first nine months of 2012 were less profitable than the comparable period in 2011 due to deterioration in the results for the primary liability and automobile components of this business. Results in the third quarter of 2012 were more profitable than the comparable period in 2011 due to more profitable results in the excess liability component. Results for the primary liability component were unprofitable in the first nine months and third quarter of 2012 compared with profitable results in the same periods of 2011, partly due to a higher volume of large reported losses, many of which related to prior accident years. The automobile component of our casualty business produced slightly unprofitable results in the first nine months and third quarter of 2012 compared with highly profitable results in the same periods of 2011. The automobile results in the 2011 periods benefited from favorable prior year loss development. Results for the excess liability component were highly profitable in the first nine months and third quarter of both 2012 and 2011, but more so in the 2012 periods. Results in all periods benefited from substantial favorable prior year loss development. Results for our casualty business were adversely affected by incurred losses related to asbestos and toxic waste claims in the first nine months and third quarter of both years. Our analysis of these exposures resulted in increases in the estimate of our ultimate liabilities. Such losses represented 1.9 and 3.0 percentage points of the combined ratio for the casualty business in the first nine months of 2012 and 2011, respectively, and 2.7 and 1.7 percentage points in the third quarter of 2012 and 2011, respectively.

Workers' compensation results were profitable in the first nine months of both 2012 and 2011, but more so in 2011 which benefited from a modest amount of favorable prior year loss development. Results were similarly profitable in the third quarter of both years. Results in all periods benefited from our disciplined risk selection during the past several years and results in the third quarter of 2012 reflected improved current accident year results, partly due to recent higher premium rate levels.

Property and marine results were profitable in the first nine months of 2012 and highly profitable in the third quarter compared with highly unprofitable results in the same periods of 2011. The improved results in the 2012 periods were primarily due to significantly lower catastrophe losses and reflected a lower current accident year combined ratio excluding catastrophes. Catastrophe losses represented 6.2 percentage points of the combined ratio for this class in the first nine months of 2012 and 2.2 percentage points in the third quarter compared with 32.9 and 31.3 percentage points, respectively, in the same periods of 2011.

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Specialty Insurance

Net premiums written from specialty insurance, which represented 21% of our premiums written in the first nine months of 2012, decreased by 5% in the first nine months of 2012 and 4% in the third quarter compared with the same periods in 2011. Net premiums written for the classes of business within the specialty insurance segment were as follows:

Nine Months Ended
Sept. 30
% Decr. Quarter Ended
Sept. 30
% Incr.
2012 2011 2012 2011 (Decr.)
(in millions) (in millions)

Professional liability

$ 1,660 $ 1,740 (5 )%  $ 567 $ 594 (5 )% 

Surety

220 244 (10 73 71 3

Total specialty

$ 1,880 $ 1,984 (5 $ 640 $ 665 (4

Net premiums written in our professional liability business decreased in the first nine months and third quarter of 2012 compared with the same periods of 2011. Net premiums written decreased both in the United States and outside the United States. Premium growth in this business remained constrained by the continuing effect of the economic downturn in recent years and our focus on profitability rather than premium volume in what remains a highly competitive marketplace. Nevertheless, there was improvement in the overall rate environment, particularly in the United States. We continued to pursue rate increases on our professional liability business renewals to address margin compression experienced in these classes of business in recent years. Average renewal rates for our professional liability business in the United States increased in the first nine months and third quarter of 2012 compared with those in the same periods of 2011, with increases occurring in all major classes of this business, particularly directors and officers liability and employment practices liability insurance. Overall renewal rates outside the United States were up slightly in the first nine months and third quarter of 2012 compared with the same periods in 2011. Retention levels and new business volume were lower in the first nine months and third quarter of 2012 compared with those in the same periods of 2011, both inside and outside the United States, consistent with our desire to selectively reduce our exposure in some customer segments where current rate levels are not attractive.

Net premiums written in our surety business decreased significantly in the first nine months of 2012 and increased modestly in the third quarter compared with the same periods in 2011. The decrease in the first nine months of 2012 occurred in our U.S. business. Current economic conditions have resulted in fewer contracts requiring a surety bond being awarded to our existing customers that operate in the construction industry. The timing of contract awards can also vary. As a result, premium growth in our surety business varies from period to period.

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Our specialty insurance business produced profitable underwriting results in the first nine months and third quarter of 2012 compared with highly profitable results in the same periods of 2011. The combined loss and expense ratios for the classes of business within the specialty insurance segment were as follows:

Periods Ended September 30
Nine Months Third Quarter
2012 2011 2012 2011

Professional liability

97.7 87.9 97.0 92.5

Surety

51.4 49.9 55.8 55.5

Total specialty

92.3 83.6 91.9 88.3

Our professional liability business produced profitable results in the first nine months of 2012 compared with highly profitable results in the same period of 2011. Results were profitable in the third quarter of both years, but more so in 2011. The less profitable results in the 2012 periods were due to a higher current accident year combined ratio and to a lower amount of favorable prior year loss development, particularly outside the United States, compared to the comparable periods of 2011.

Results in the directors and officers liability class were highly profitable in the first nine months and third quarter of both years. Results in the fidelity class were modestly unprofitable in the first nine months of 2012 compared with profitable results in the same period of 2011. Results for this class were unprofitable in the third quarter of both years. Results in the employment practices liability class were highly unprofitable in the first nine months of 2012 compared with profitable results in the same period of 2011. Results for this class were highly unprofitable in the third quarter of 2012 compared with modestly unprofitable results in the same period of 2011. Results in the 2012 periods reflected a higher current accident year combined ratio and unfavorable prior year loss development. Employment practice liability claims have been more numerous and protracted due to the effect of the economic downturn and higher unemployment levels in recent years. Results in the errors and omissions liability class were highly unprofitable in the first nine months of both years. Results for this class were also highly unprofitable in the third quarter of 2012 compared to unprofitable results in the same period of 2011. Results in the first nine months of both years and the third quarter of 2012 reflected unfavorable prior year loss development. Results in the fiduciary liability class were highly profitable in the first nine months and third quarter of both 2012 and 2011, reflecting favorable prior year loss development.

Our surety business produced highly profitable results in the first nine months and third quarter of both 2012 and 2011 due to favorable loss experience. Our surety business tends to be characterized by losses that are infrequent but have the potential to be highly severe.

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Reinsurance Assumed

Net premiums written from our reinsurance assumed business, which is in runoff, were not significant in the first nine months and third quarter of 2012 and 2011.

Reinsurance assumed results were profitable in the first nine months and third quarter of 2012 and 2011. Results in all periods benefited from favorable prior year loss development.

Catastrophe Risk Management

Our property and casualty subsidiaries have exposure to losses caused by natural perils such as hurricanes and other windstorms, earthquakes, severe winter weather and brush fires as well as from man-made catastrophic events such as terrorism. The frequency and severity of catastrophes are inherently unpredictable.

The extent of losses from a catastrophe is a function of both the total amount of insured exposure in an area affected by the event and the severity of the event. We regularly assess our concentration of risk exposure in catastrophe exposed areas globally and have strategies and underwriting standards to manage this exposure through individual risk selection, subject to regulatory constraints, and through the purchase of catastrophe reinsurance coverage. We use catastrophe modeling and a risk concentration management tool to monitor and control our accumulations of potential losses in catastrophe exposed areas in the United States, such as California and the gulf and east coasts, as well as in catastrophe exposed areas in certain other countries. The information provided by the catastrophe modeling and the risk concentration management tool has resulted in our non-renewing some accounts and refraining from writing others.

Catastrophe modeling generally relies on multiple inputs based on experience, science, engineering and history, and the selection of those inputs requires a significant amount of judgment. The modeling results may also fail to account for risks that are outside the range of normal probability or are otherwise unforeseen. Because of this, actual results may differ materially from those derived from our modeling exercises.

We also continue to actively explore and analyze credible scientific evidence, including the potential impact of global climate change, that may affect our ability to manage exposure under the insurance policies we issue as well as the impact that laws and regulations intended to combat climate change could have on us.

Despite our efforts to manage our catastrophe exposure, the occurrence of one or more severe catastrophic events could have a material effect on the Corporation's results of operations, financial condition or liquidity.

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Loss Reserves

Unpaid losses and loss expenses, also referred to as loss reserves, are the largest liability of our property and casualty subsidiaries.

Our loss reserves include case estimates for claims that have been reported and estimates for claims that have been incurred but not reported at the balance sheet date as well as estimates of the expenses associated with processing and settling all reported and unreported claims, less estimates of anticipated salvage and subrogation recoveries. Estimates are based upon past loss experience modified for current trends as well as prevailing economic, legal and social conditions. Our loss reserves are not discounted to present value.

We regularly review our loss reserves using a variety of actuarial techniques. We update the reserve estimates as historical loss experience develops, additional claims are reported and/or settled and new information becomes available. Any changes in estimates are reflected in operating results in the period in which the estimates are changed.

Incurred but not reported (IBNR) reserve estimates are generally calculated by first projecting the ultimate cost of all claims that have occurred and then subtracting reported losses and loss expenses. Reported losses include cumulative paid losses and loss expenses plus case reserves. The IBNR reserve includes a provision for claims that have occurred but have not yet been reported to us, some of which are not yet known to the insured, as well as a provision for future development on reported claims. A relatively large proportion of our net loss reserves, particularly for long tail liability classes, are reserves for IBNR losses. In fact, about 70% of our aggregate net loss reserves at September 30, 2012 were for IBNR losses.

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Our gross case and incurred but not reported (IBNR) loss reserves and related reinsurance recoverable by class of business were as follows:

Gross Loss Reserves Reinsurance

Net

Loss

September 30, 2012 Case IBNR Total Recoverable Reserves
(in millions)

Personal insurance

Automobile

$ 277 $ 144 $ 421 $ 19 $ 402

Homeowners

387 363 750 10 740

Other

369 675 1,044 132 912

Total personal

1,033 1,182 2,215 161 2,054

Commercial insurance

Multiple peril

619 1,188 1,807 31 1,776

Casualty

1,414 5,372 6,786 363 6,423

Workers' compensation

950 1,815 2,765 208 2,557

Property and marine

790 580 1,370 316 1,054

Total commercial

3,773 8,955 12,728 918 11,810

Specialty insurance

Professional liability

1,442 6,169 7,611 404 7,207

Surety

29 59 88 5 83

Total specialty

1,471 6,228 7,699 409 7,290

Total insurance

6,277 16,365 22,642 1,488 21,154

Reinsurance assumed

207 391 598 202 396

Total

$ 6,484 $ 16,756 $ 23,240 $ 1,690 $ 21,550

Gross Loss Reserves Reinsurance

Net

Loss

December 31, 2011 Case IBNR Total Recoverable Reserves
(in millions)

Personal insurance

Automobile

$ 269 $ 151 $ 420 $ 16 $ 404

Homeowners

431 349 780 11 769

Other

392 649 1,041 139 902

Total personal

1,092 1,149 2,241 166 2,075

Commercial insurance

Multiple peril

600 1,169 1,769 34 1,735

Casualty

1,388 5,229 6,617 343 6,274

Workers' compensation

913 1,669 2,582 190 2,392

Property and marine

896 558 1,454 336 1,118

Total commercial

3,797 8,625 12,422 903 11,519

Specialty insurance

Professional liability

1,498 6,098 7,596 416 7,180

Surety

27 54 81 6 75

Total specialty

1,525 6,152 7,677 422 7,255

Total insurance

6,414 15,926 22,340 1,491 20,849

Reinsurance assumed

240 488 728 248 480

Total

$ 6,654 $ 16,414 $ 23,068 $ 1,739 $ 21,329

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Loss reserves, net of reinsurance recoverable, increased by $221 million during the first nine months of 2012. Loss reserves related to our insurance business increased by $305 million during the first nine months of 2012, which included a decrease of approximately $16 million related to the effect of foreign currency translation due to the stronger U.S. dollar at September 30, 2012 compared to December 31, 2011. Loss reserves related to our reinsurance assumed business, which is in runoff, decreased by $84 million.

The decreases in our homeowners and property and marine gross case reserves during the first nine months of 2012 were due largely to payments during the first nine months of 2012 on catastrophe-related claims that were unpaid at December 31, 2011. The increase in gross IBNR reserves in our commercial insurance business occurred primarily in the workers' compensation class and the casualty class, largely related to the primary liability component, reflecting premium growth as well as some margin compression. The decrease in our professional liability gross case reserves during the first nine months of 2012 was due largely to the settlement of several large claims that were unpaid as of December 31, 2011.

In establishing the loss reserves of our property and casualty subsidiaries, we consider facts currently known and the present state of the law and coverage litigation. Based on all information currently available, we believe that the aggregate loss reserves at September 30, 2012 were adequate to cover claims for losses that had occurred as of that date, including both those known to us and those yet to be reported. However, as discussed in Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2011, there are significant uncertainties inherent in the loss reserving process. It is therefore possible that management's estimate of the ultimate liability for losses that had occurred as of September 30, 2012 may change, which could have a material effect on the Corporation's results of operations and financial condition.

Changes in loss reserve estimates are unavoidable because such estimates are subject to the outcome of future events. Loss trends vary and time is required for changes in trends to be recognized and confirmed. Reserve changes that increase previous estimates of ultimate cost are referred to as unfavorable or adverse development or reserve strengthening. Reserve changes that decrease previous estimates of ultimate cost are referred to as favorable development or reserve releases.

We estimate that we experienced overall favorable prior year development of about $410 million during the first nine months of 2012 and $145 million in the third quarter compared with favorable prior year development of about $580 million and $155 million, respectively, in the comparable periods of 2011.

The favorable development in the first nine months of 2012 was primarily in the commercial liability classes, due to continued favorable loss experience related mainly to accident years 2008 and prior and, to a lesser extent, in the professional liability classes, also due to favorable loss experience related mainly to accident years 2008 and prior, and in the personal insurance classes. The favorable development in the first nine months of 2011 occurred primarily in the commercial liability and professional liability classes related mainly to accident years 2007 and prior and, to a lesser extent, in the personal insurance classes.

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Investment Results

Property and casualty investment income before taxes decreased 5% in the first nine months of 2012 and 8% in the third quarter compared with the same periods in 2011. The decrease was due to a modest decline in average yields on our investment portfolio and, to a lesser extent, a decrease in our average invested assets. The average yield on the fixed maturity investment portfolio of the property and casualty subsidiaries decreased for the first nine months of 2012 compared to the same period of 2011 due to the continuing impact of lower reinvestment yields compared to the yields on fixed maturity securities that matured, were redeemed by the issuer or were sold since the third quarter of 2011. The average invested assets of the property and casualty subsidiaries were lower during the first nine months of 2012 compared with the same period of 2011 due to the substantial dividend distributions made by the property and casualty subsidiaries to Chubb during 2011 and 2012.

The effective tax rate on our investment income was 18.7% in the first nine months of 2012 compared with 19.0% in the same period of 2011. The effective tax rate fluctuates as the proportion of tax exempt investment income to total investment income changes from period to period.

On an after-tax basis, property and casualty investment income decreased by 4% in the first nine months of 2012 and decreased 7% in the third quarter compared with the same periods in 2011. The after-tax annualized yield on the investment portfolio that supports our property and casualty insurance business was 3.14% and 3.24% in the first nine months of 2012 and 2011, respectively.

We expect that property and casualty investment income after taxes for the full year 2012 will decline modestly from the full year 2011 amount if both investment yields and average foreign currency to U.S. dollar exchange rates remain about the same as September 30, 2012 levels. This expected decline results, in large part, from the effect of investing funds from securities that matured or were redeemed in 2011 and 2012 in securities with yields lower than the yields of the maturing or redeemed securities, and the expectation that this pattern will continue during the remainder of 2012. To a lesser extent, the expected decline also reflects the lower amount of average invested assets estimated to be held during 2012, based on expectations of cash flows for the full year.

Other Income and Charges

Other income and charges, which includes miscellaneous income and expenses of the property and casualty subsidiaries, was income of $6 million in the first nine months of 2012 compared to income of $24 million in the same period of 2011. The income primarily was from several small property and casualty insurance companies in which we have an interest.

Corporate and Other

Corporate and other comprises investment income earned on corporate invested assets, interest expense and other expenses not allocated to our operating subsidiaries and the results of our non-insurance subsidiaries.

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Corporate and other produced a loss before taxes of $173 million in the first nine months of 2012 compared to a loss of $188 million for the same period of 2011. The lower loss in the first nine months of 2012 was primarily due to lower interest expense resulting from the repayment of $400 million of outstanding notes upon maturity in November 2011.

Realized Investment Gains and Losses

Net realized investment gains and losses were as follows:

Periods Ended September 30
Nine Months Third Quarter
2012 2011 2012 2011
(in millions)

Net realized gains

Fixed maturities

$ 79 $ 23 $ 27 $ 15

Equity securities

50 44 25 16

Other invested assets

18 256 (45 47

147 323 7 78

Other-than-temporary impairment losses

Fixed maturities

(4 (1 (2 (1

Equity securities

(40 (22 (5 (6

(44 (23 (7 (7

Realized investment gains before tax

$ 103 $ 300 $ - $ 71

Realized investment gains after tax

$ 67 $ 195 $ - $ 46

The net realized gains of our other invested assets represent primarily the aggregate of realized gain distributions to us from the limited partnerships in which we have an interest and changes in our equity in the net assets of those partnerships based on valuations provided to us by the manager of each partnership. Due to the timing of our receipt of valuation data from the investment managers, the value of these investments and any related realized gains or losses are generally reported on a one quarter lag.

The net realized gains of the limited partnerships reported in the first nine months of 2012 primarily reflected the strong performance of the U.S. equity and high yield investment markets in the first quarter of 2012 partially offset by the negative performance of several non-U.S. equity markets, particularly in Asia, in the fourth quarter of 2011 and the global equity markets in the second quarter of 2012. The net realized gains of the limited partnerships reported in the first nine months of 2011 reflected the strong performance of the U.S. equity and high yield investment markets in the fourth quarter of 2010 and the first quarter of 2011.

We regularly review the invested assets that have a fair value less than cost to determine if an other-than-temporary decline in value has occurred. We have a monitoring process overseen by a committee of investment and accounting professionals that is responsible for identifying those securities to be specifically evaluated for a potential other-than-temporary impairment.

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The determination of whether a decline in value of any investment is temporary or other than temporary requires the judgment of management. The assessment of other-than-temporary impairment of fixed maturities and equity securities is based on both quantitative criteria and qualitative information and also considers a number of factors including, but not limited to, the length of time and the extent to which the fair value has been less than the cost, the financial condition and near term prospects of the issuer, whether the issuer is current on contractually obligated interest and principal payments, general market conditions and industry or sector specific factors. The decision to recognize a decline in the value of a security carried at fair value as other than temporary rather than temporary has no impact on shareholders' equity.

In determining whether fixed maturities are other than temporarily impaired, we are required to recognize an other-than-temporary impairment loss for a fixed maturity when we conclude that we have the intent to sell or it is more likely than not that we will be required to sell an impaired fixed maturity before the security recovers to its amortized cost value or it is likely we will not recover the entire amortized cost value of an impaired security. If we have the intent to sell or it is more likely than not we will be required to sell an impaired fixed maturity before the security recovers to its amortized cost value, the security is written down to fair value and the entire amount of the writedown is included in net income as a realized investment loss. For all other impaired fixed maturities, the impairment loss is separated into the amount representing the credit loss and the amount representing the loss related to all other factors. The amount of the impairment loss that represents the credit loss is included in net income as a realized investment loss and the amount of the impairment loss that relates to all other factors is included in other comprehensive income.

In determining whether equity securities are other than temporarily impaired, we consider our intent and ability to hold a security for a period of time sufficient to allow us to recover our cost. If a decline in the fair value of an equity security is deemed to be other than temporary, the security is written down to fair value and the amount of the writedown is included in net income as a realized investment loss.

Capital Resources and Liquidity

Capital resources and liquidity represent a company's overall financial strength and its ability to generate cash flows, borrow funds at competitive rates and raise new capital to meet operating and growth needs.

Capital Resources

Capital resources provide protection for policyholders, furnish the financial strength to support the business of underwriting insurance risks and facilitate continued business growth. At September 30, 2012, the Corporation had shareholders' equity of $16.0 billion and total debt of $3.6 billion.

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Management regularly monitors the Corporation's capital resources. In connection with our long term capital strategy, Chubb from time to time contributes capital to its property and casualty subsidiaries. In addition, in order to satisfy capital needs as a result of any rating agency capital adequacy or other future rating issues, or in the event we were to need additional capital to make strategic investments in light of market opportunities, we may take a variety of actions, which could include the issuance of additional debt and/or equity securities. We believe that our strong financial position and current debt level provide us with the flexibility and capacity to obtain funds externally through debt or equity financings on both a short term and long term basis.

In December 2010, the Board of Directors authorized the repurchase of up to 30,000,000 shares of Chubb's common stock. We repurchased shares under this authorization through January 2012, at which time all repurchases allowed under the authorization were completed. In January 2012, the Board of Directors authorized the repurchase of up to $1.2 billion of Chubb's common stock. Under these authorizations, during the first nine months of 2012, we repurchased 12,724,740 shares of Chubb's common stock in open market transactions at a cost of $907 million. As of September 30, 2012, $357 million remained under the January 2012 share repurchase authorization. Additional information related to the share repurchase authorization is included in the Subsequent Event section.

Ratings

Chubb and its property and casualty insurance subsidiaries are rated by major rating agencies. These ratings reflect the rating agency's opinion of our financial strength, operating performance, strategic position and ability to meet our obligations to policyholders.

Credit ratings assess a company's ability to make timely payments of interest and principal on its debt. Financial strength ratings assess an insurer's ability to meet its financial obligations to policyholders.

Ratings are an important factor in establishing our competitive position in the insurance markets. There can be no assurance that our ratings will continue for any given period of time or that they will not be changed.

It is possible that one or more of the rating agencies may raise or lower our existing ratings in the future. If our credit ratings were downgraded, we might incur higher borrowing costs and might have more limited means to access capital. A downgrade in our financial strength ratings could adversely affect the competitive position of our insurance operations, including a possible reduction in demand for our products in certain markets.

Liquidity

Liquidity is a measure of a company's ability to generate sufficient cash flows to meet the short and long term cash requirements of its business operations.

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The Corporation's liquidity requirements in the past have generally been met by funds from operations and we expect that in the future funds from operations will continue to be sufficient to meet such requirements. Liquidity requirements could also be met by funds received upon the maturity or sale of marketable securities in our investment portfolio. The Corporation also has the ability to borrow under its $500 million credit facility and we believe we could issue debt or equity securities.

Our property and casualty operations provide liquidity in that insurance premiums are generally received months or even years before losses are paid under the policies purchased by such premiums. Cash receipts from operations, consisting of insurance premiums and investment income, provide funds to pay losses, operating expenses and dividends to Chubb. After satisfying our cash requirements, excess cash flows are used to build the investment portfolio, with the expectation of generating increased future investment income.

Our underwriting and investment results generated substantial positive operating cash flows in the nine months ended September 30, 2012 and 2011. In the first nine months of 2012, the cash provided by the property and casualty subsidiaries' operating activities increased approximately $100 million compared to the same period of 2011. The positive impact of modestly higher premium collections was partially offset by the impact of a lower amount of investment income received in the first nine months of 2012 compared to the same period of 2011. During the first nine months of 2012, the cash provided by the operating activities of the property and casualty subsidiaries exceeded the cash used for financing activities (primarily the payment of dividends to Chubb) by approximately $700 million. During the first nine months of 2011, the cash used for financing activities (primarily the payment of dividends to Chubb) of the property and casualty subsidiaries exceeded the cash provided by operating activities by approximately $340 million. In the first nine months of 2012, dividends paid to Chubb by the property and casualty subsidiaries were $1.2 billion compared to $2.1 billion in the comparable period of 2011.

Our property and casualty subsidiaries maintain substantial investments in highly liquid, short term marketable securities. Accordingly, we do not anticipate selling long term fixed maturity investments to meet any liquidity needs.

Chubb's liquidity requirements primarily include the payment of dividends to shareholders and interest and principal on debt obligations. The declaration and payment of future dividends to Chubb's shareholders will be at the discretion of Chubb's Board of Directors and will depend upon many factors, including our operating results, financial condition, capital requirements and any regulatory constraints.

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As a holding company, Chubb's ability to continue to pay dividends to shareholders and to satisfy its debt obligations relies on the availability of liquid assets, which is dependent in large part on the dividend paying ability of its property and casualty subsidiaries. The timing and amount of dividends paid by the property and casualty subsidiaries to Chubb may vary from year to year. Our property and casualty subsidiaries are subject to laws and regulations in the jurisdictions in which they operate that restrict the amount and timing of dividends they may pay within twelve consecutive months without the prior approval of regulatory authorities. The restrictions are generally based on net income and on certain levels of policyholders' surplus as determined in accordance with statutory accounting practices. Dividends in excess of such thresholds are considered "extraordinary" and require prior regulatory approval.

During the first nine months of 2012, the property and casualty subsidiaries paid aggregate dividends of $1.2 billion to Chubb. These dividends included $830 million of dividends paid during the first six months of 2012 that were deemed to be extraordinary under applicable insurance regulations due to the limitation on the amount of dividends that may be paid within twelve consecutive months. Regulatory approval was required and obtained for the payment of these dividends. Whether any dividend payments during the remainder of 2012 require regulatory approval will depend on the amount and timing of such dividend payments by the subsidiaries to Chubb. As of September 30, 2012, the maximum aggregate dividend distribution that may be made by the subsidiaries to Chubb during the remainder of 2012 without prior regulatory approval was approximately $600 million.

On September 24, 2012, Chubb entered into a revolving credit agreement with a syndicate of banks that provides for up to $500 million of unsecured borrowings. The revolving credit facility is available for general corporate purposes. The agreement has a maturity date of September 24, 2017. Various interest rate options are available to Chubb, all of which are based on market interest rates. The agreement contains customary restrictive covenants, including a covenant to maintain a minimum adjusted consolidated shareholders' equity. Chubb is permitted to request an increase in the credit available under the agreement, no more than two times per year, up to a maximum facility amount of $750 million. Chubb is permitted to request on two occasions, at any time during the remaining term of the agreement, an extension of the maturity date for an additional one year period. There have been no borrowings under this agreement. On the maturity date of the agreement, any borrowings then outstanding become payable. A previous five-year $500 million revolving credit agreement that would have expired on October 19, 2012 was terminated as of September 24, 2012 in connection with the new revolving credit agreement.

Invested Assets

The main objectives in managing our investment portfolios are to maximize after-tax investment income and total investment return while minimizing credit risk and managing interest rate risk in order to ensure that funds will be available to meet our insurance obligations. Investment strategies are developed based on many factors including underwriting results and our resulting tax position, regulatory requirements, fluctuations in interest rates and consideration of other market risks. Investment decisions are centrally managed by investment professionals based on guidelines established by management and approved by the boards of directors of Chubb and its respective operating companies.

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Our investment portfolio primarily comprises high quality bonds, principally tax exempt securities, corporate bonds, mortgage-backed securities and U.S. Treasury securities, as well as foreign government and corporate bonds that support our operations outside the United States. The portfolio also includes equity securities, primarily publicly traded common stocks, and other invested assets, primarily private equity limited partnerships, all of which are held with the primary objective of capital appreciation.

Our objective is to achieve the appropriate mix of taxable and tax exempt securities in our portfolio to balance both investment and tax strategies. At September 30, 2012, 66% of our fixed maturity portfolio that supports our U.S. operations was invested in tax exempt securities. At September 30, 2012, about 80% of our tax exempt securities were rated Aa or better, with about 20% of our tax exempt securities rated Aaa. The average rating of our tax exempt securities was Aa. While about 30% of our tax exempt securities were insured, the effect of insurance on the average credit rating of these securities was insignificant. The insured tax exempt securities in our portfolio have been selected based on the quality of the underlying credit and not the value of the credit insurance enhancement.

At September 30, 2012, 6% of our taxable fixed maturity portfolio was invested in U.S. government and government agency and authority obligations other than mortgage-backed securities and had an average rating of Aa. About 60% of the U.S. government and government agency and authority obligations other than mortgage-backed securities were U.S. Treasury securities with an average rating of Aaa and the remainder were taxable bonds issued by states, municipalities and political subdivisions within the United States with an average rating of Aa.

At September 30, 2012, 43% of our taxable fixed maturity portfolio consisted of corporate bonds other than mortgage-backed securities, which were issued by a diverse group of U.S. and foreign issuers and had an average rating of A. About 60% of our corporate bonds other than mortgage-backed securities were issued by U.S. companies and about 40% were issued by foreign companies. Our foreign corporate bonds included $53 million, $27 million and $18 million issued by companies, including banks, in Italy, Ireland and Spain, respectively. We held no bonds issued by companies in Greece or Portugal.

At September 30, 2012, 38% of our taxable fixed maturity portfolio was invested in foreign government and government agency obligations, which had an average rating of Aa. The foreign government and government agency obligations consisted of high quality securities, primarily issued by national governments and, to a lesser extent, government agencies, regional governments and supranational organizations. The five largest issuers within this portfolio were Canada, Germany, the United Kingdom, Australia and Brazil, which collectively accounted for about 75% of our total foreign government and government agency obligations. Another 7% of our total foreign government and government agency obligations were issued by supranational organizations. We held no sovereign securities issued by Greece, Portugal, Ireland or Italy and held only $12 million of sovereign securities issued by Spain. We held an insignificant amount of foreign government or government agency fixed maturities that have a third party guarantee.

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At September 30, 2012, 13% of our taxable fixed maturity portfolio was invested in mortgage-backed securities. About 95% of the mortgage-backed securities were rated Aaa. About half of the remaining 5% were below investment grade. Of the Aaa rated securities, 20% were residential mortgage-backed securities, consisting of government agency pass-through securities guaranteed by a government agency or a government sponsored enterprise (GSE), GSE collateralized mortgage obligations (CMOs) and other CMOs, all backed by single family home mortgages. The majority of our CMOs are actively traded in liquid markets. The other 80% of the Aaa rated securities were call protected, commercial mortgage-backed securities (CMBS). About 96% of our CMBS were senior securities with the highest level of subordination. The remainder of our CMBS were seasoned securities that were issued in 1998 or earlier.

The net unrealized appreciation before tax of our fixed maturities and equity securities carried at fair value was $3.2 billion at September 30, 2012 compared with net unrealized appreciation before tax of $2.7 billion at December 31, 2011. Such unrealized appreciation is reflected in accumulated other comprehensive income, net of applicable deferred income tax.

Fair Values of Financial Instruments

Fair values of financial instruments are determined using valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. Fair values are generally measured using quoted prices in active markets for identical assets or liabilities or other inputs, such as quoted prices for similar assets or liabilities, that are observable either directly or indirectly. In those instances where observable inputs are not available, fair values are measured using unobservable inputs for the asset or liability. Unobservable inputs reflect our own assumptions about the assumptions that market participants would use in pricing the asset or liability and are developed based on the best information available in the circumstances. Fair value estimates derived from unobservable inputs are affected by the assumptions used, including the discount rates and the estimated amounts and timing of future cash flows. The derived fair value estimates cannot be substantiated by comparison to independent markets and are not necessarily indicative of the amounts that would be realized in a current market exchange.

The fair value hierarchy prioritizes the inputs to valuation techniques used to measure the fair values of our fixed maturities and equity securities into three broad levels as follows:

Level 1 - Unadjusted quoted prices in active markets for identical assets.
Level 2 - Other inputs that are observable for the asset, either directly or indirectly.
Level 3 - Inputs that are unobservable.
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The methods and assumptions used to estimate the fair values of financial instruments are as follows:

Fair values for fixed maturities are determined by management, utilizing prices obtained from a third party, nationally recognized pricing service or, in the case of securities for which prices are not provided by a pricing service, from a third party broker. For fixed maturities that have quoted prices in active markets, market quotations are provided. For fixed maturities that do not trade on a daily basis, the pricing service and brokers provide fair value estimates using a variety of inputs including, but not limited to, benchmark yields, reported trades, broker/dealer quotes, issuer spreads, bids, offers, reference data, prepayment rates and measures of volatility. Management reviews on an ongoing basis the reasonableness of the methodologies used by the relevant pricing service and brokers. In addition, management, using the prices received for the securities from the pricing service and brokers, determines the aggregate portfolio price performance and reviews it against applicable indices. If management believes that significant discrepancies exist, it will discuss these with the relevant pricing service or broker to resolve the discrepancies.

Fair values of equity securities are based on quoted market prices.

The carrying value of short term investments approximates fair value due to the short maturities of these investments.

Fair values of long term debt issued by Chubb are determined by management, utilizing prices obtained from a third party, nationally recognized pricing service.

We use a pricing service to estimate fair value measurements for approximately 99% of our fixed maturities. The prices we obtain from a pricing service and brokers generally are non-binding, but are reflective of current market transactions in the applicable financial instruments.

At September 30, 2012 and December 31, 2011, we held an insignificant amount of financial instruments in our investment portfolio for which a lack of market liquidity impacted our determination of fair value.

Change in Accounting Principle

Effective January 1, 2012, we adopted new guidance issued by the Financial Accounting Standards Board related to the accounting for costs associated with acquiring or renewing insurance contracts. The guidance identifies those costs relating to the successful acquisition of new or renewal insurance contracts that should be capitalized. The Corporation elected retrospective application of this guidance under which deferred policy acquisition costs and related deferred income tax liabilities were reduced as of the beginning of the earliest period presented in the financial statements, offset by a cumulative effect adjustment that reduced retained earnings. The adoption of this guidance decreased deferred policy acquisition costs by $420 million, decreased deferred income tax liabilities by $147 million and decreased shareholders' equity by $273 million as of December 31, 2011. The effect of the adoption of the new guidance on net income for the nine months ended September 30, 2012 and September 30, 2011 was not material. The change in accounting is discussed further in Note (2) of the Notes to Consolidated Financial Statements.

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Subsequent Event

In late October 2012, Hurricane/Tropical Storm Sandy impacted several states in the eastern portion of the United States. Given its recent occurrence and the limited information currently available, we cannot estimate at this time the amount of losses from this event. Conditions in some areas affected by the storm could delay the notification and assessment of potential claims, which could impact the length of time that it may take to determine our losses related to this event. Since we currently are not able to provide an estimate of our losses related to Sandy, we have temporarily ceased repurchasing shares of our common stock pursuant to our existing share repurchase program to ensure compliance with applicable securities trading laws. As a result, it is possible that we may not complete the repurchase of all of the shares under our current share repurchase authorization by the end of January 2013, as previously contemplated.

Item 4 - Controls and Procedures

As of September 30, 2012, an evaluation of the effectiveness of the design and operation of the Corporation's disclosure controls and procedures (as such term is defined in Rule 13a-15(e) of the Securities Exchange Act of 1934) was performed under the supervision and with the participation of the Corporation's management, including Chubb's chief executive officer and chief financial officer. Based on that evaluation, the chief executive officer and chief financial officer concluded that the Corporation's disclosure controls and procedures were effective as of September 30, 2012.

During the quarter ended September 30, 2012, there were no changes in internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, the Corporation's internal control over financial reporting.

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PART II. OTHER INFORMATION

Item 1 - Legal Proceedings

The information required with respect to Item 1 is included in Note (6) of the unaudited Consolidated Financial Statements, which information is incorporated by reference into this Item 1.

Item 1A - Risk Factors

The Corporation's business is subject to a number of risks, including those identified in Item 1A of Chubb's Annual Report on Form 10-K for the year ended December 31, 2011, that could have a material effect on our business, results of operations, financial condition and/or liquidity and that could cause our operating results to vary significantly from fiscal period to fiscal period. The risks described in the Annual Report on Form 10-K are not the only risks we face. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also could have a material effect on our business, results of operations, financial condition and/or liquidity.

Item 2 - Unregistered Sales of Equity Securities and Use of Proceeds

The following table summarizes Chubb's stock repurchased each month in the quarter ended September 30, 2012:

Total Number
of Shares
Purchased(a)
Average
Price Paid
Per Share  
Total Number of
Shares Purchased
as Part of
Publicly Announced
Plans or Programs
Maximum
Approximate
Dollar Value of
Shares that May
Yet Be Purchased
Under the Plans
or Programs(b)
(in millions)

Period

July 2012

659,536 $ 70.18 659,536 $ 612

August 2012

1,431,821 72.84 1,431,821 507

September 2012

1,984,915 75.69 1,984,915 357

Total

4,076,272 73.80 4,076,272

(a) The stated amounts exclude 832 shares delivered to Chubb during the month of September 2012 by employees of the Corporation to cover option exercise prices in connection with the Corporation's stock-based compensation plans.

(b) On January 26, 2012, the Board of Directors authorized the repurchase of up to $1.2 billion of Chubb's common stock. The authorization has no expiration date.
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Item 6 - Exhibits

Exhibit
Number

Description

- Material Contracts
10.1 Five Year Revolving Credit Agreement dated as of September 24, 2012
filed herewith.
- Rule 13a-14(a)/15d-14(a) Certifications
31.1 Certification by John D. Finnegan filed herewith.
31.2 Certification by Richard G. Spiro filed herewith.
- Section 1350 Certifications
32.1 Certification by John D. Finnegan filed herewith.
32.2 Certification by Richard G. Spiro filed herewith.
- Interactive Data File
101.INS XBRL Instance Document
101.SCH XBRL Taxonomy Extension Schema Document
101.CAL XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB XBRL Taxonomy Extension Label Linkbase Document
101.PRE XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF XBRL Taxonomy Extension Definition Linkbase Document

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, The Chubb Corporation has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

THE CHUBB CORPORATION
(Registrant)
By: /s/ John J. Kennedy
John J. Kennedy
Senior Vice-President and Chief Accounting
Officer
Date: November 8, 2012